26500642 has 16 divisors (see below), whose sum is σ = 46487232. Its totient is φ = 11093040.

The previous prime is 26500633. The next prime is 26500673. The reversal of 26500642 is 24600562.

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, 21409 + ... + 22612.

It is an arithmetic number, because the mean of its divisors is an integer number (2905452).

Almost surely, 2^26500642 is an apocalyptic number.

26500642 is a deficient number, since it is larger than the sum of its proper divisors (19986590).

26500642 is a wasteful number, since it uses less digits than its factorization.

26500642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44073.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 26500642 is about 5147.8774266682. The cubic root of 26500642 is about 298.1390054614.

The spelling of 26500642 in words is "twenty-six million, five hundred thousand, six hundred forty-two".