26864404 has 24 divisors (see below), whose sum is σ = 56557760. Its totient is φ = 10907136.

The previous prime is 26864399. The next prime is 26864413. The reversal of 26864404 is 40446862.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 26864404.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 24717 + ... + 25780.

Almost surely, 2^26864404 is an apocalyptic number.

It is an amenable number.

26864404 is an abundant number, since it is smaller than the sum of its proper divisors (29693356).

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

26864404 is a wasteful number, since it uses less digits than its factorization.

26864404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50527 (or 50525 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 26864404 is about 5183.0882685905. The cubic root of 26864404 is about 299.4969495315.

The spelling of 26864404 in words is "twenty-six million, eight hundred sixty-four thousand, four hundred four".