26640982 has 4 divisors (see below), whose sum is σ = 39961476. Its totient is φ = 13320490.

The previous prime is 26640973. The next prime is 26641001. The reversal of 26640982 is 28904662.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 6660244 + ... + 6660247.

It is an arithmetic number, because the mean of its divisors is an integer number (9990369).

Almost surely, 2^26640982 is an apocalyptic number.

26640982 is a deficient number, since it is larger than the sum of its proper divisors (13320494).

26640982 is a wasteful number, since it uses less digits than its factorization.

26640982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13320493.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 26640982 is about 5161.4902886666. The cubic root of 26640982 is about 298.6643661356.

The spelling of 26640982 in words is "twenty-six million, six hundred forty thousand, nine hundred eighty-two".