26868642 has 16 divisors (see below), whose sum is σ = 53809920. Its totient is φ = 8944112.

The previous prime is 26868613. The next prime is 26868643. The reversal of 26868642 is 24686862.

It is a junction number, because it is equal to n+sod(n) for n = 26868594 and 26868603.

It is not an unprimeable number, because it can be changed into a prime (26868643) 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, 2584 + ... + 7772.

It is an arithmetic number, because the mean of its divisors is an integer number (3363120).

Almost surely, 2^26868642 is an apocalyptic number.

26868642 is an abundant number, since it is smaller than the sum of its proper divisors (26941278).

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

26868642 is a wasteful number, since it uses less digits than its factorization.

26868642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6057.

The product of its digits is 221184, while the sum is 42.

The square root of 26868642 is about 5183.4970820866. The cubic root of 26868642 is about 299.5126977726.

The spelling of 26868642 in words is "twenty-six million, eight hundred sixty-eight thousand, six hundred forty-two".