64266528 has 96 divisors (see below), whose sum is σ = 182238336. Its totient is φ = 19755008.

The previous prime is 64266487. The next prime is 64266533. The reversal of 64266528 is 82566246.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86125 + ... + 86867.

It is an arithmetic number, because the mean of its divisors is an integer number (1898316).

Almost surely, 2^64266528 is an apocalyptic number.

64266528 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64266528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91119168).

64266528 is an abundant number, since it is smaller than the sum of its proper divisors (117971808).

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

64266528 is a wasteful number, since it uses less digits than its factorization.

64266528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 818 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 64266528 is about 8016.6406929586. The cubic root of 64266528 is about 400.5544976424.

The spelling of 64266528 in words is "sixty-four million, two hundred sixty-six thousand, five hundred twenty-eight".