22957740 has 72 divisors (see below), whose sum is σ = 75002928. Its totient is φ = 5650560.

The previous prime is 22957733. The next prime is 22957783. The reversal of 22957740 is 4775922.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 22957695 and 22957704.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2566 + ... + 7245.

Almost surely, 2^22957740 is an apocalyptic number.

22957740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22957740 is an abundant number, since it is smaller than the sum of its proper divisors (52045188).

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

22957740 is a wasteful number, since it uses less digits than its factorization.

22957740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9839 (or 9834 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 22957740 is about 4791.4235880373. The cubic root of 22957740 is about 284.2124146507.

The spelling of 22957740 in words is "twenty-two million, nine hundred fifty-seven thousand, seven hundred forty".