64026990 has 32 divisors (see below), whose sum is σ = 170739360. Its totient is φ = 17073792.

The previous prime is 64026973. The next prime is 64027001. The reversal of 64026990 is 9962046.

64026990 is a `hidden beast` number, since 640 + 2 + 6 + 9 + 9 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118299 + ... + 118838.

It is an arithmetic number, because the mean of its divisors is an integer number (5335605).

Almost surely, 2^64026990 is an apocalyptic number.

64026990 is an abundant number, since it is smaller than the sum of its proper divisors (106712370).

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

64026990 is a wasteful number, since it uses less digits than its factorization.

64026990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237153 (or 237147 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 64026990 is about 8001.6866971908. The cubic root of 64026990 is about 400.0562212642.

The spelling of 64026990 in words is "sixty-four million, twenty-six thousand, nine hundred ninety".