22691403460 has 36 divisors (see below), whose sum is σ = 52377765804. Its totient is φ = 8251418560.

The previous prime is 22691403409. The next prime is 22691403499. The reversal of 22691403460 is 6430419622.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12163001796 + 10528401664 = 110286^2 + 102608^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4685887 + ... + 4690726.

It is an arithmetic number, because the mean of its divisors is an integer number (1454937939).

Almost surely, 2^22691403460 is an apocalyptic number.

22691403460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22691403460 is an abundant number, since it is smaller than the sum of its proper divisors (29686362344).

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

22691403460 is a wasteful number, since it uses less digits than its factorization.

22691403460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9376644 (or 9376631 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 22691403460 in words is "twenty-two billion, six hundred ninety-one million, four hundred three thousand, four hundred sixty".