26788690 has 16 divisors (see below), whose sum is σ = 48278592. Its totient is φ = 10702384.

The previous prime is 26788679. The next prime is 26788711. The reversal of 26788690 is 9688762.

It is a super-2 number, since 2×26788690² = 1435267823832200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26788690.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15237 + ... + 16903.

It is an arithmetic number, because the mean of its divisors is an integer number (3017412).

Almost surely, 2^26788690 is an apocalyptic number.

26788690 is a deficient number, since it is larger than the sum of its proper divisors (21489902).

26788690 is a wasteful number, since it uses less digits than its factorization.

26788690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3281.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 26788690 is about 5175.7791683958. The cubic root of 26788690 is about 299.2153197495.

The spelling of 26788690 in words is "twenty-six million, seven hundred eighty-eight thousand, six hundred ninety".