26790538 has 16 divisors (see below), whose sum is σ = 44400960. Its totient is φ = 12058816.

The previous prime is 26790509. The next prime is 26790557. The reversal of 26790538 is 83509762.

It is a self number, because there is not a number n which added to its sum of digits gives 26790538.

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, 16348 + ... + 17911.

It is an arithmetic number, because the mean of its divisors is an integer number (2775060).

Almost surely, 2^26790538 is an apocalyptic number.

26790538 is a deficient number, since it is larger than the sum of its proper divisors (17610422).

26790538 is a wasteful number, since it uses less digits than its factorization.

26790538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34301.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 26790538 is about 5175.9576891625. The cubic root of 26790538 is about 299.2221999814. Note that the first 3 decimals are identical.

The spelling of 26790538 in words is "twenty-six million, seven hundred ninety thousand, five hundred thirty-eight".