22729964 has 12 divisors (see below), whose sum is σ = 39954264. Its totient is φ = 11314464.

The previous prime is 22729963. The next prime is 22729981. The reversal of 22729964 is 46992722.

It is not an unprimeable number, because it can be changed into a prime (22729961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11609 + ... + 13424.

It is an arithmetic number, because the mean of its divisors is an integer number (3329522).

Almost surely, 2^22729964 is an apocalyptic number.

It is an amenable number.

22729964 is a deficient number, since it is larger than the sum of its proper divisors (17224300).

22729964 is a wasteful number, since it uses less digits than its factorization.

22729964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25264 (or 25262 counting only the distinct ones).

The product of its digits is 108864, while the sum is 41.

The square root of 22729964 is about 4767.5952009373. The cubic root of 22729964 is about 283.2693477964.

The spelling of 22729964 in words is "twenty-two million, seven hundred twenty-nine thousand, nine hundred sixty-four".