22657380 has 24 divisors (see below), whose sum is σ = 63440832. Its totient is φ = 6041952.

The previous prime is 22657361. The next prime is 22657409. The reversal of 22657380 is 8375622.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 188752 + ... + 188871.

It is an arithmetic number, because the mean of its divisors is an integer number (2643368).

Almost surely, 2^22657380 is an apocalyptic number.

22657380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22657380 is an abundant number, since it is smaller than the sum of its proper divisors (40783452).

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

22657380 is a wasteful number, since it uses less digits than its factorization.

22657380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377635 (or 377633 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 22657380 is about 4759.9768907002. The cubic root of 22657380 is about 282.9675032504.

The spelling of 22657380 in words is "twenty-two million, six hundred fifty-seven thousand, three hundred eighty".