21914296 has 16 divisors (see below), whose sum is σ = 43252200. Its totient is φ = 10380384.

The previous prime is 21914257. The next prime is 21914317. The reversal of 21914296 is 69241912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71935 + ... + 72238.

Almost surely, 2^21914296 is an apocalyptic number.

It is an amenable number.

21914296 is a deficient number, since it is larger than the sum of its proper divisors (21337904).

21914296 is a wasteful number, since it uses less digits than its factorization.

21914296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144198 (or 144194 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 21914296 is about 4681.2707676442. The cubic root of 21914296 is about 279.8396020111.

The spelling of 21914296 in words is "twenty-one million, nine hundred fourteen thousand, two hundred ninety-six".