1062432640 has 128 divisors (see below), whose sum is σ = 2612113920. Its totient is φ = 413091840.

The previous prime is 1062432607. The next prime is 1062432643. The reversal of 1062432640 is 462342601.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1062432640² = 2257526229074739200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1062432599 and 1062432608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1062432643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4680207 + ... + 4680433.

It is an arithmetic number, because the mean of its divisors is an integer number (20407140).

Almost surely, 2^1062432640 is an apocalyptic number.

1062432640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1062432640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1306056960).

1062432640 is an abundant number, since it is smaller than the sum of its proper divisors (1549681280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1062432640 is a wasteful number, since it uses less digits than its factorization.

1062432640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 1062432640 is about 32594.9787544033. The cubic root of 1062432640 is about 1020.3922110795.

It can be divided in two parts, 10624 and 32640, that added together give a square (43264 = 208²).

The spelling of 1062432640 in words is "one billion, sixty-two million, four hundred thirty-two thousand, six hundred forty".