22701928 has 8 divisors (see below), whose sum is σ = 42566130. Its totient is φ = 11350960.

The previous prime is 22701923. The next prime is 22701929. The reversal of 22701928 is 82910722.

It can be written as a sum of positive squares in only one way, i.e., 14303524 + 8398404 = 3782^2 + 2898^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 22701928.

It is not an unprimeable number, because it can be changed into a prime (22701923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1418863 + ... + 1418878.

Almost surely, 2^22701928 is an apocalyptic number.

It is an amenable number.

22701928 is a deficient number, since it is larger than the sum of its proper divisors (19864202).

22701928 is a wasteful number, since it uses less digits than its factorization.

22701928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837747 (or 2837743 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 22701928 is about 4764.6540273141. The cubic root of 22701928 is about 283.1528348257.

The spelling of 22701928 in words is "twenty-two million, seven hundred one thousand, nine hundred twenty-eight".