22757980 has 24 divisors (see below), whose sum is σ = 54619488. Its totient is φ = 7802688.

The previous prime is 22757939. The next prime is 22757989. The reversal of 22757980 is 8975722.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22757989) 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, 81139 + ... + 81418.

It is an arithmetic number, because the mean of its divisors is an integer number (2275812).

Almost surely, 2^22757980 is an apocalyptic number.

22757980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22757980 is an abundant number, since it is smaller than the sum of its proper divisors (31861508).

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

22757980 is a wasteful number, since it uses less digits than its factorization.

22757980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162573 (or 162571 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 22757980 is about 4770.5324650399. The cubic root of 22757980 is about 283.3856819845.

The spelling of 22757980 in words is "twenty-two million, seven hundred fifty-seven thousand, nine hundred eighty".