64432356 has 24 divisors (see below), whose sum is σ = 151005120. Its totient is φ = 21382752.

The previous prime is 64432349. The next prime is 64432369. The reversal of 64432356 is 65323446.

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, 8976 + ... + 14471.

It is an arithmetic number, because the mean of its divisors is an integer number (6291880).

Almost surely, 2^64432356 is an apocalyptic number.

It is an amenable number.

64432356 is an abundant number, since it is smaller than the sum of its proper divisors (86572764).

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

64432356 is a wasteful number, since it uses less digits than its factorization.

64432356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23683 (or 23681 counting only the distinct ones).

The product of its digits is 51840, while the sum is 33.

The square root of 64432356 is about 8026.9767658814. The cubic root of 64432356 is about 400.8987209062.

The spelling of 64432356 in words is "sixty-four million, four hundred thirty-two thousand, three hundred fifty-six".