22472431720 has 32 divisors (see below), whose sum is σ = 51391878120. Its totient is φ = 8841611520.

The previous prime is 22472431711. The next prime is 22472431741. The reversal of 22472431720 is 2713427422.

It can be written as a sum of positive squares in 4 ways, for example, as 6216691716 + 16255740004 = 78846^2 + 127498^2 .

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4602567 + ... + 4607446.

Almost surely, 2^22472431720 is an apocalyptic number.

22472431720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22472431720 is an abundant number, since it is smaller than the sum of its proper divisors (28919446400).

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

22472431720 is a wasteful number, since it uses less digits than its factorization.

22472431720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9210085 (or 9210081 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 34.

The spelling of 22472431720 in words is "twenty-two billion, four hundred seventy-two million, four hundred thirty-one thousand, seven hundred twenty".