64405160 has 32 divisors (see below), whose sum is σ = 148831560. Its totient is φ = 25065216.

The previous prime is 64405153. The next prime is 64405171. The reversal of 64405160 is 6150446.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42745444 + 21659716 = 6538^2 + 4654^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20279 + ... + 23238.

Almost surely, 2^64405160 is an apocalyptic number.

It is an amenable number.

64405160 is an abundant number, since it is smaller than the sum of its proper divisors (84426400).

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

64405160 is a wasteful number, since it uses less digits than its factorization.

64405160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43565 (or 43561 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 64405160 is about 8025.2825495430. The cubic root of 64405160 is about 400.8423083798.

It can be divided in two parts, 64 and 405160, that added together give a cube (405224 = 74³).

The spelling of 64405160 in words is "sixty-four million, four hundred five thousand, one hundred sixty".