26638972 has 12 divisors (see below), whose sum is σ = 47408760. Its totient is φ = 13093616.

The previous prime is 26638957. The next prime is 26639009. The reversal of 26638972 is 27983662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56203 + ... + 56674.

It is an arithmetic number, because the mean of its divisors is an integer number (3950730).

Almost surely, 2^26638972 is an apocalyptic number.

It is an amenable number.

26638972 is a deficient number, since it is larger than the sum of its proper divisors (20769788).

26638972 is a wasteful number, since it uses less digits than its factorization.

26638972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112940 (or 112938 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 26638972 is about 5161.2955737877. The cubic root of 26638972 is about 298.6568547700.

The spelling of 26638972 in words is "twenty-six million, six hundred thirty-eight thousand, nine hundred seventy-two".