64395402 has 16 divisors (see below), whose sum is σ = 128886240. Its totient is φ = 21449232.

The previous prime is 64395299. The next prime is 64395403. The reversal of 64395402 is 20459346.

64395402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (64395403) by changing a digit.

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, 7224 + ... + 13452.

It is an arithmetic number, because the mean of its divisors is an integer number (8055390).

Almost surely, 2^64395402 is an apocalyptic number.

64395402 is an abundant number, since it is smaller than the sum of its proper divisors (64490838).

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

64395402 is a wasteful number, since it uses less digits than its factorization.

64395402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7957.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 64395402 is about 8024.6745728409. The cubic root of 64395402 is about 400.8220635381.

The spelling of 64395402 in words is "sixty-four million, three hundred ninety-five thousand, four hundred two".