64405464 has 16 divisors (see below), whose sum is σ = 161013720. Its totient is φ = 21468480.

The previous prime is 64405457. The next prime is 64405483. The reversal of 64405464 is 46450446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1341757 + ... + 1341804.

Almost surely, 2^64405464 is an apocalyptic number.

It is an amenable number.

64405464 is an abundant number, since it is smaller than the sum of its proper divisors (96608256).

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

64405464 is a wasteful number, since it uses less digits than its factorization.

64405464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2683570 (or 2683566 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 64405464 is about 8025.3014896638. The cubic root of 64405464 is about 400.8429390532.

The spelling of 64405464 in words is "sixty-four million, four hundred five thousand, four hundred sixty-four".