64242928 has 10 divisors (see below), whose sum is σ = 124470704. Its totient is φ = 32121456.

The previous prime is 64242901. The next prime is 64242929. The reversal of 64242928 is 82924246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64242929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2007576 + ... + 2007607.

Almost surely, 2^64242928 is an apocalyptic number.

It is an amenable number.

64242928 is a deficient number, since it is larger than the sum of its proper divisors (60227776).

64242928 is a wasteful number, since it uses less digits than its factorization.

64242928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015191 (or 4015185 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 64242928 is about 8015.1686195613. The cubic root of 64242928 is about 400.5054610039.

The spelling of 64242928 in words is "sixty-four million, two hundred forty-two thousand, nine hundred twenty-eight".