64272448 has 28 divisors (see below), whose sum is σ = 127855980. Its totient is φ = 32056832.

The previous prime is 64272433. The next prime is 64272449. The reversal of 64272448 is 84427246.

It can be written as a sum of positive squares in 2 ways, for example, as 33269824 + 31002624 = 5768^2 + 5568^2 .

It is not an unprimeable number, because it can be changed into a prime (64272449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31590 + ... + 33562.

It is an arithmetic number, because the mean of its divisors is an integer number (4566285).

Almost surely, 2^64272448 is an apocalyptic number.

It is an amenable number.

64272448 is a deficient number, since it is larger than the sum of its proper divisors (63583532).

64272448 is a wasteful number, since it uses less digits than its factorization.

64272448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494 (or 2484 counting only the distinct ones).

The product of its digits is 86016, while the sum is 37.

The square root of 64272448 is about 8017.0099164215. The cubic root of 64272448 is about 400.5667964750.

The spelling of 64272448 in words is "sixty-four million, two hundred seventy-two thousand, four hundred forty-eight".