21944962 has 32 divisors (see below), whose sum is σ = 38545920. Its totient is φ = 9279360.

The previous prime is 21944941. The next prime is 21944987. The reversal of 21944962 is 26944912.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14598 + ... + 16030.

It is an arithmetic number, because the mean of its divisors is an integer number (1204560).

Almost surely, 2^21944962 is an apocalyptic number.

21944962 is a deficient number, since it is larger than the sum of its proper divisors (16600958).

21944962 is a wasteful number, since it uses less digits than its factorization.

21944962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498.

The product of its digits is 31104, while the sum is 37.

The square root of 21944962 is about 4684.5450152603. The cubic root of 21944962 is about 279.9700733321.

The spelling of 21944962 in words is "twenty-one million, nine hundred forty-four thousand, nine hundred sixty-two".