64408404 has 24 divisors (see below), whose sum is σ = 158196640. Its totient is φ = 20339424.

The previous prime is 64408403. The next prime is 64408457. The reversal of 64408404 is 40480446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64408403) 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, 141019 + ... + 141474.

Almost surely, 2^64408404 is an apocalyptic number.

It is an amenable number.

64408404 is an abundant number, since it is smaller than the sum of its proper divisors (93788236).

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

64408404 is a wasteful number, since it uses less digits than its factorization.

64408404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282519 (or 282517 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 64408404 is about 8025.4846582621. The cubic root of 64408404 is about 400.8490382268.

The spelling of 64408404 in words is "sixty-four million, four hundred eight thousand, four hundred four".