22479603990 has 32 divisors (see below), whose sum is σ = 53956578816. Its totient is φ = 5993946720.

The previous prime is 22479603947. The next prime is 22479603997. The reversal of 22479603990 is 9930697422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22479603997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311469 + ... + 376791.

It is an arithmetic number, because the mean of its divisors is an integer number (1686143088).

Almost surely, 2^22479603990 is an apocalyptic number.

22479603990 is an abundant number, since it is smaller than the sum of its proper divisors (31476974826).

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

22479603990 is a wasteful number, since it uses less digits than its factorization.

22479603990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76804.

The product of its (nonzero) digits is 1469664, while the sum is 51.

The spelling of 22479603990 in words is "twenty-two billion, four hundred seventy-nine million, six hundred three thousand, nine hundred ninety".