22072494 has 16 divisors (see below), whose sum is σ = 46741968. Its totient is φ = 6924672.

The previous prime is 22072487. The next prime is 22072517. The reversal of 22072494 is 49427022.

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, 108097 + ... + 108300.

It is an arithmetic number, because the mean of its divisors is an integer number (2921373).

Almost surely, 2^22072494 is an apocalyptic number.

22072494 is an abundant number, since it is smaller than the sum of its proper divisors (24669474).

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

22072494 is a wasteful number, since it uses less digits than its factorization.

22072494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216419.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 22072494 is about 4698.1372904588. The cubic root of 22072494 is about 280.5113699275.

The spelling of 22072494 in words is "twenty-two million, seventy-two thousand, four hundred ninety-four".