64182920 has 16 divisors (see below), whose sum is σ = 144411660. Its totient is φ = 25673152.

The previous prime is 64182913. The next prime is 64182941. The reversal of 64182920 is 2928146.

64182920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 63712324 + 470596 = 7982^2 + 686^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802247 + ... + 802326.

Almost surely, 2^64182920 is an apocalyptic number.

It is an amenable number.

64182920 is an abundant number, since it is smaller than the sum of its proper divisors (80228740).

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

64182920 is a wasteful number, since it uses less digits than its factorization.

64182920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604584 (or 1604580 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 64182920 is about 8011.4243427745. The cubic root of 64182920 is about 400.3807208475.

The spelling of 64182920 in words is "sixty-four million, one hundred eighty-two thousand, nine hundred twenty".