64469272 has 16 divisors (see below), whose sum is σ = 138148560. Its totient is φ = 27629664.

The previous prime is 64469269. The next prime is 64469297. The reversal of 64469272 is 27296446.

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, 575563 + ... + 575674.

It is an arithmetic number, because the mean of its divisors is an integer number (8634285).

Almost surely, 2^64469272 is an apocalyptic number.

It is an amenable number.

64469272 is an abundant number, since it is smaller than the sum of its proper divisors (73679288).

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

64469272 is a wasteful number, since it uses less digits than its factorization.

64469272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151250 (or 1151246 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 64469272 is about 8029.2759324861. The cubic root of 64469272 is about 400.9752701876.

The spelling of 64469272 in words is "sixty-four million, four hundred sixty-nine thousand, two hundred seventy-two".