22790973438 has 12 divisors (see below), whose sum is σ = 49380442488. Its totient is φ = 7596991140.

The previous prime is 22790973437. The next prime is 22790973481. The reversal of 22790973438 is 83437909722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22790973431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 633082578 + ... + 633082613.

It is an arithmetic number, because the mean of its divisors is an integer number (4115036874).

Almost surely, 2^22790973438 is an apocalyptic number.

22790973438 is an abundant number, since it is smaller than the sum of its proper divisors (26589469050).

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

22790973438 is a wasteful number, since it uses less digits than its factorization.

22790973438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266165199 (or 1266165196 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 22790973438 in words is "twenty-two billion, seven hundred ninety million, nine hundred seventy-three thousand, four hundred thirty-eight".