22464740 has 24 divisors (see below), whose sum is σ = 47274360. Its totient is φ = 8967168.

The previous prime is 22464737. The next prime is 22464773. The reversal of 22464740 is 4746422.

It can be written as a sum of positive squares in 4 ways, for example, as 1378276 + 21086464 = 1174^2 + 4592^2 .

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, 12626 + ... + 14294.

It is an arithmetic number, because the mean of its divisors is an integer number (1969765).

Almost surely, 2^22464740 is an apocalyptic number.

22464740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22464740 is an abundant number, since it is smaller than the sum of its proper divisors (24809620).

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

22464740 is a wasteful number, since it uses less digits than its factorization.

22464740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351 (or 2349 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 22464740 is about 4739.6983026349. The cubic root of 22464740 is about 282.1632607611.

The spelling of 22464740 in words is "twenty-two million, four hundred sixty-four thousand, seven hundred forty".