21922674 has 8 divisors (see below), whose sum is σ = 43845360. Its totient is φ = 7307556.

The previous prime is 21922669. The next prime is 21922687. The reversal of 21922674 is 47622912.

It is a sphenic number, since it is the product of 3 distinct primes.

21922674 is an admirable 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, 1826884 + ... + 1826895.

It is an arithmetic number, because the mean of its divisors is an integer number (5480670).

Almost surely, 2^21922674 is an apocalyptic number.

21922674 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21922674 is a wasteful number, since it uses less digits than its factorization.

21922674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3653784.

The product of its digits is 12096, while the sum is 33.

The square root of 21922674 is about 4682.1655246264. The cubic root of 21922674 is about 279.8752590616.

The spelling of 21922674 in words is "twenty-one million, nine hundred twenty-two thousand, six hundred seventy-four".