22239464 has 32 divisors (see below), whose sum is σ = 45125640. Its totient is φ = 10214400.

The previous prime is 22239461. The next prime is 22239473. The reversal of 22239464 is 46493222.

It can be written as a sum of positive squares in 4 ways, for example, as 9351364 + 12888100 = 3058^2 + 3590^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22239464.

It is not an unprimeable number, because it can be changed into a prime (22239461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28844 + ... + 29604.

Almost surely, 2^22239464 is an apocalyptic number.

It is an amenable number.

22239464 is an abundant number, since it is smaller than the sum of its proper divisors (22886176).

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

22239464 is a wasteful number, since it uses less digits than its factorization.

22239464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061 (or 1057 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 22239464 is about 4715.8736200199. The cubic root of 22239464 is about 281.2169143632.

The spelling of 22239464 in words is "twenty-two million, two hundred thirty-nine thousand, four hundred sixty-four".