64401470 has 16 divisors (see below), whose sum is σ = 132483168. Its totient is φ = 22080480.

The previous prime is 64401427. The next prime is 64401479. The reversal of 64401470 is 7410446.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64401479) 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, 459941 + ... + 460080.

It is an arithmetic number, because the mean of its divisors is an integer number (8280198).

Almost surely, 2^64401470 is an apocalyptic number.

64401470 is an abundant number, since it is smaller than the sum of its proper divisors (68081698).

64401470 is a wasteful number, since it uses less digits than its factorization.

64401470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920035.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 64401470 is about 8025.0526478024. The cubic root of 64401470 is about 400.8346530079.

The spelling of 64401470 in words is "sixty-four million, four hundred one thousand, four hundred seventy".