64075432 has 32 divisors (see below), whose sum is σ = 122185800. Its totient is φ = 31497984.

The previous prime is 64075411. The next prime is 64075457. The reversal of 64075432 is 23457046.

It can be written as a sum of positive squares in 4 ways, for example, as 63904036 + 171396 = 7994^2 + 414^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64075394 and 64075403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171598 + ... + 171970.

Almost surely, 2^64075432 is an apocalyptic number.

It is an amenable number.

64075432 is a deficient number, since it is larger than the sum of its proper divisors (58110368).

64075432 is a wasteful number, since it uses less digits than its factorization.

64075432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 64075432 is about 8004.7131116612. The cubic root of 64075432 is about 400.1570883001.

The spelling of 64075432 in words is "sixty-four million, seventy-five thousand, four hundred thirty-two".