22937945940 has 576 divisors, whose sum is σ = 89232998400. Its totient is φ = 4639472640.

The previous prime is 22937945857. The next prime is 22937945969. The reversal of 22937945940 is 4954973922.

22937945940 is a `hidden beast` number, since 229 + 379 + 4 + 5 + 9 + 40 = 666.

It is a super-2 number, since 2×22937945940² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 101048107 + ... + 101048333.

It is an arithmetic number, because the mean of its divisors is an integer number (154918400).

Almost surely, 2^22937945940 is an apocalyptic number.

22937945940 is a gapful number since it is divisible by the number (20) 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 22937945940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44616499200).

22937945940 is an abundant number, since it is smaller than the sum of its proper divisors (66295052460).

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

22937945940 is a wasteful number, since it uses less digits than its factorization.

22937945940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 22937945940 in words is "twenty-two billion, nine hundred thirty-seven million, nine hundred forty-five thousand, nine hundred forty".