21492926 has 16 divisors (see below), whose sum is σ = 39679584. Its totient is φ = 8502624.

The previous prime is 21492883. The next prime is 21492937. The reversal of 21492926 is 62929412.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58865 + ... + 59228.

It is an arithmetic number, because the mean of its divisors is an integer number (2479974).

Almost surely, 2^21492926 is an apocalyptic number.

21492926 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

21492926 is a deficient number, since it is larger than the sum of its proper divisors (18186658).

21492926 is a wasteful number, since it uses less digits than its factorization.

21492926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118115.

The product of its digits is 15552, while the sum is 35.

The square root of 21492926 is about 4636.0463759544. The cubic root of 21492926 is about 278.0343883758.

The spelling of 21492926 in words is "twenty-one million, four hundred ninety-two thousand, nine hundred twenty-six".