64044402 has 32 divisors (see below), whose sum is σ = 135302400. Its totient is φ = 20153808.

The previous prime is 64044391. The next prime is 64044413. The reversal of 64044402 is 20444046.

It is an interprime number because it is at equal distance from previous prime (64044391) and next prime (64044413).

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, 38749 + ... + 40367.

It is an arithmetic number, because the mean of its divisors is an integer number (4228200).

Almost surely, 2^64044402 is an apocalyptic number.

64044402 is an abundant number, since it is smaller than the sum of its proper divisors (71257998).

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

64044402 is a wasteful number, since it uses less digits than its factorization.

64044402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 64044402 is about 8002.7746438345. The cubic root of 64044402 is about 400.0924827824.

Adding to 64044402 its reverse (20444046), we get a palindrome (84488448).

It can be divided in two parts, 64044 and 402, that added together give a palindrome (64446).

The spelling of 64044402 in words is "sixty-four million, forty-four thousand, four hundred two".