22729570280 has 32 divisors (see below), whose sum is σ = 51207762600. Its totient is φ = 9080054016.

The previous prime is 22729570273. The next prime is 22729570291. The reversal of 22729570280 is 8207592722.

It can be written as a sum of positive squares in 4 ways, for example, as 10245083524 + 12484486756 = 101218^2 + 111734^2 .

It is a super-2 number, since 2×22729570280² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336635 + ... + 398474.

Almost surely, 2^22729570280 is an apocalyptic number.

22729570280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22729570280 is an abundant number, since it is smaller than the sum of its proper divisors (28478192320).

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

22729570280 is a wasteful number, since it uses less digits than its factorization.

22729570280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735893 (or 735889 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 22729570280 in words is "twenty-two billion, seven hundred twenty-nine million, five hundred seventy thousand, two hundred eighty".