64464402 has 16 divisors (see below), whose sum is σ = 130695840. Its totient is φ = 21193632.

The previous prime is 64464383. The next prime is 64464409. The reversal of 64464402 is 20446446.

It is a self number, because there is not a number n which added to its sum of digits gives 64464402.

It is not an unprimeable number, because it can be changed into a prime (64464409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73152 + ... + 74027.

It is an arithmetic number, because the mean of its divisors is an integer number (8168490).

Almost surely, 2^64464402 is an apocalyptic number.

64464402 is an abundant number, since it is smaller than the sum of its proper divisors (66231438).

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

64464402 is a wasteful number, since it uses less digits than its factorization.

64464402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147257.

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 64464402 is about 8028.9726615552. The cubic root of 64464402 is about 400.9651733943.

The spelling of 64464402 in words is "sixty-four million, four hundred sixty-four thousand, four hundred two".