22940129280 has 96 divisors (see below), whose sum is σ = 73390590000. Its totient is φ = 6117359616.

The previous prime is 22940129269. The next prime is 22940129287. The reversal of 22940129280 is 8292104922.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×22940129280² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22940129287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342655 + ... + 404094.

Almost surely, 2^22940129280 is an apocalyptic number.

22940129280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22940129280 is an abundant number, since it is smaller than the sum of its proper divisors (50450460720).

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

22940129280 is an equidigital number, since it uses as much as digits as its factorization.

22940129280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746779 (or 746759 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 22940129280 in words is "twenty-two billion, nine hundred forty million, one hundred twenty-nine thousand, two hundred eighty".