64395456 has 112 divisors (see below), whose sum is σ = 183062880. Its totient is φ = 19906560.

The previous prime is 64395433. The next prime is 64395481. The reversal of 64395456 is 65459346.

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, 355686 + ... + 355866.

It is an arithmetic number, because the mean of its divisors is an integer number (1634490).

Almost surely, 2^64395456 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 64395456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91531440).

64395456 is an abundant number, since it is smaller than the sum of its proper divisors (118667424).

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

64395456 is a wasteful number, since it uses less digits than its factorization.

64395456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 312 counting only the distinct ones).

The product of its digits is 388800, while the sum is 42.

The square root of 64395456 is about 8024.6779374627. The cubic root of 64395456 is about 400.8221755771.

The spelling of 64395456 in words is "sixty-four million, three hundred ninety-five thousand, four hundred fifty-six".