1062640 has 40 divisors (see below), whose sum is σ = 2544480. Its totient is φ = 412416.

The previous prime is 1062601. The next prime is 1062643. The reversal of 1062640 is 462601.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1062640² = 2258407539200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1062643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2781 + ... + 3139.

It is an arithmetic number, because the mean of its divisors is an integer number (63612).

2^1062640 is an apocalyptic number.

1062640 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 1062640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1272240).

1062640 is an abundant number, since it is smaller than the sum of its proper divisors (1481840).

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

1062640 is a wasteful number, since it uses less digits than its factorization.

1062640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1062640 is about 1030.8443141425. The cubic root of 1062640 is about 102.0458591685.

The spelling of 1062640 in words is "one million, sixty-two thousand, six hundred forty".