64207232 has 64 divisors (see below), whose sum is σ = 142657200. Its totient is φ = 28606464.

The previous prime is 64207219. The next prime is 64207243. The reversal of 64207232 is 23270246.

64207232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×64207232² = 8245137282203648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40568 + ... + 42120.

Almost surely, 2^64207232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64207232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71328600).

64207232 is an abundant number, since it is smaller than the sum of its proper divisors (78449968).

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

64207232 is a wasteful number, since it uses less digits than its factorization.

64207232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603 (or 1591 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 64207232 is about 8012.9415322964. The cubic root of 64207232 is about 400.4312681856.

Adding to 64207232 its reverse (23270246), we get a palindrome (87477478).

The spelling of 64207232 in words is "sixty-four million, two hundred seven thousand, two hundred thirty-two".