1063232640 has 192 divisors, whose sum is σ = 3694050360. Its totient is φ = 281788416.

The previous prime is 1063232627. The next prime is 1063232659. The reversal of 1063232640 is 462323601.

1063232640 is a `hidden beast` number, since 1 + 0 + 632 + 3 + 26 + 4 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 887086656 + 176145984 = 29784^2 + 13272^2 .

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×1063232640² = 2260927293522739200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1134252 + ... + 1135188.

Almost surely, 2^1063232640 is an apocalyptic number.

1063232640 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 1063232640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1847025180).

1063232640 is an abundant number, since it is smaller than the sum of its proper divisors (2630817720).

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

1063232640 is a wasteful number, since it uses less digits than its factorization.

1063232640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 1063232640 is about 32607.2482739651. The cubic root of 1063232640 is about 1020.6482614969.

The spelling of 1063232640 in words is "one billion, sixty-three million, two hundred thirty-two thousand, six hundred forty".