1043232640 has 32 divisors (see below), whose sum is σ = 2493979560. Its totient is φ = 417292800.

The previous prime is 1043232599. The next prime is 1043232709. The reversal of 1043232640 is 462323401.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1043232640² = 2176668682322739200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814386 + ... + 815665.

Almost surely, 2^1043232640 is an apocalyptic number.

1043232640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1043232640 is an abundant number, since it is smaller than the sum of its proper divisors (1450746920).

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

1043232640 is an equidigital number, since it uses as much as digits as its factorization.

1043232640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630070 (or 1630058 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1043232640 is about 32299.1120620985. The cubic root of 1043232640 is about 1014.2080551154.

The spelling of 1043232640 in words is "one billion, forty-three million, two hundred thirty-two thousand, six hundred forty".