21926104 has 8 divisors (see below), whose sum is σ = 41111460. Its totient is φ = 10963048.

The previous prime is 21926077. The next prime is 21926123. The reversal of 21926104 is 40162912.

It is a tau number, because it is divible by the number of its divisors (8).

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, 1370374 + ... + 1370389.

Almost surely, 2^21926104 is an apocalyptic number.

It is an amenable number.

21926104 is a deficient number, since it is larger than the sum of its proper divisors (19185356).

21926104 is a wasteful number, since it uses less digits than its factorization.

21926104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740769 (or 2740765 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 21926104 is about 4682.5317938056. The cubic root of 21926104 is about 279.8898546363.

The spelling of 21926104 in words is "twenty-one million, nine hundred twenty-six thousand, one hundred four".