1432640032 has 24 divisors (see below), whose sum is σ = 2873730636. Its totient is φ = 702803712.

The previous prime is 1432640023. The next prime is 1432640039. The reversal of 1432640032 is 2300462341.

It can be written as a sum of positive squares in 2 ways, for example, as 1368704016 + 63936016 = 36996^2 + 7996^2 .

It is a super-2 number, since 2×1432640032² = 4104914922577922048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1432639979 and 1432640006.

It is not an unprimeable number, because it can be changed into a prime (1432640039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420663 + ... + 424054.

Almost surely, 2^1432640032 is an apocalyptic number.

It is an amenable number.

1432640032 is an abundant number, since it is smaller than the sum of its proper divisors (1441090604).

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

1432640032 is an equidigital number, since it uses as much as digits as its factorization.

1432640032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844780 (or 844772 counting only the distinct ones).

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

The square root of 1432640032 is about 37850.2315977062. The cubic root of 1432640032 is about 1127.3160600818.

The spelling of 1432640032 in words is "one billion, four hundred thirty-two million, six hundred forty thousand, thirty-two".