64076256 has 72 divisors (see below), whose sum is σ = 188121024. Its totient is φ = 20666880.

The previous prime is 64076237. The next prime is 64076273. The reversal of 64076256 is 65267046.

64076256 is a `hidden beast` number, since 640 + 7 + 6 + 2 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 64076256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5340 + ... + 12516.

It is an arithmetic number, because the mean of its divisors is an integer number (2612792).

Almost surely, 2^64076256 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 64076256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94060512).

64076256 is an abundant number, since it is smaller than the sum of its proper divisors (124044768).

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

64076256 is a wasteful number, since it uses less digits than its factorization.

64076256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7224 (or 7213 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 64076256 is about 8004.7645811729. The cubic root of 64076256 is about 400.1588036119.

The spelling of 64076256 in words is "sixty-four million, seventy-six thousand, two hundred fifty-six".