64013028 has 24 divisors (see below), whose sum is σ = 149493120. Its totient is φ = 21319200.

The previous prime is 64013023. The next prime is 64013039. The reversal of 64013028 is 82031046.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 64012989 and 64013007.

It is not an unprimeable number, because it can be changed into a prime (64013021) 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, 26053 + ... + 28403.

It is an arithmetic number, because the mean of its divisors is an integer number (6228880).

Almost surely, 2^64013028 is an apocalyptic number.

It is an amenable number.

64013028 is an abundant number, since it is smaller than the sum of its proper divisors (85480092).

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

64013028 is a wasteful number, since it uses less digits than its factorization.

64013028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4627 (or 4625 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 64013028 is about 8000.8142085665. The cubic root of 64013028 is about 400.0271398252.

The spelling of 64013028 in words is "sixty-four million, thirteen thousand, twenty-eight".