64072880 has 40 divisors (see below), whose sum is σ = 150660000. Its totient is φ = 25338368.

The previous prime is 64072859. The next prime is 64072907. The reversal of 64072880 is 8827046.

64072880 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 (40).

It is a self number, because there is not a number n which added to its sum of digits gives 64072880.

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, 2621 + ... + 11619.

It is an arithmetic number, because the mean of its divisors is an integer number (3766500).

Almost surely, 2^64072880 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 64072880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75330000).

64072880 is an abundant number, since it is smaller than the sum of its proper divisors (86587120).

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

64072880 is a wasteful number, since it uses less digits than its factorization.

64072880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9101 (or 9095 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 64072880 is about 8004.5537039863. The cubic root of 64072880 is about 400.1517757364.

The spelling of 64072880 in words is "sixty-four million, seventy-two thousand, eight hundred eighty".