22557460 has 24 divisors (see below), whose sum is σ = 48900096. Its totient is φ = 8731680.

The previous prime is 22557449. The next prime is 22557463. The reversal of 22557460 is 6475522.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22557463) 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, 17572 + ... + 18811.

It is an arithmetic number, because the mean of its divisors is an integer number (2037504).

Almost surely, 2^22557460 is an apocalyptic number.

22557460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22557460 is an abundant number, since it is smaller than the sum of its proper divisors (26342636).

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

22557460 is a wasteful number, since it uses less digits than its factorization.

22557460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36423 (or 36421 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 22557460 is about 4749.4694440537. The cubic root of 22557460 is about 282.5509240696.

The spelling of 22557460 in words is "twenty-two million, five hundred fifty-seven thousand, four hundred sixty".