64332072 has 48 divisors (see below), whose sum is σ = 199124640. Its totient is φ = 18380448.

The previous prime is 64332071. The next prime is 64332077. The reversal of 64332072 is 27023346.

It is not an unprimeable number, because it can be changed into a prime (64332071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63318 + ... + 64325.

It is an arithmetic number, because the mean of its divisors is an integer number (4148430).

Almost surely, 2^64332072 is an apocalyptic number.

It is an amenable number.

64332072 is an abundant number, since it is smaller than the sum of its proper divisors (134792568).

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

64332072 is a wasteful number, since it uses less digits than its factorization.

64332072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127662 (or 127655 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 64332072 is about 8020.7276477886. The cubic root of 64332072 is about 400.6906235781.

The spelling of 64332072 in words is "sixty-four million, three hundred thirty-two thousand, seventy-two".