21096374 has 16 divisors (see below), whose sum is σ = 34201440. Its totient is φ = 9701760.

The previous prime is 21096367. The next prime is 21096379. The reversal of 21096374 is 47369012.

It is a self number, because there is not a number n which added to its sum of digits gives 21096374.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21096379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6782 + ... + 9390.

It is an arithmetic number, because the mean of its divisors is an integer number (2137590).

Almost surely, 2^21096374 is an apocalyptic number.

21096374 is a deficient number, since it is larger than the sum of its proper divisors (13105066).

21096374 is a wasteful number, since it uses less digits than its factorization.

21096374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2935.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 21096374 is about 4593.0789237722. The cubic root of 21096374 is about 276.3138189881.

The spelling of 21096374 in words is "twenty-one million, ninety-six thousand, three hundred seventy-four".