22370664 has 64 divisors (see below), whose sum is σ = 58449600. Its totient is φ = 7128576.

The previous prime is 22370641. The next prime is 22370671. The reversal of 22370664 is 46607322.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54492 + ... + 54900.

It is an arithmetic number, because the mean of its divisors is an integer number (913275).

Almost surely, 2^22370664 is an apocalyptic number.

22370664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22370664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29224800).

22370664 is an abundant number, since it is smaller than the sum of its proper divisors (36078936).

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

22370664 is a wasteful number, since it uses less digits than its factorization.

22370664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 22370664 is about 4729.7636304577. The cubic root of 22370664 is about 281.7688362630.

Adding to 22370664 its reverse (46607322), we get a palindrome (68977986).

The spelling of 22370664 in words is "twenty-two million, three hundred seventy thousand, six hundred sixty-four".