22430821956 has 24 divisors (see below), whose sum is σ = 52348363200. Its totient is φ = 7475543712.

The previous prime is 22430821879. The next prime is 22430821997. The reversal of 22430821956 is 65912803422.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106656 + ... + 237143.

It is an arithmetic number, because the mean of its divisors is an integer number (2181181800).

Almost surely, 2^22430821956 is an apocalyptic number.

It is an amenable number.

22430821956 is an abundant number, since it is smaller than the sum of its proper divisors (29917541244).

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

22430821956 is a wasteful number, since it uses less digits than its factorization.

22430821956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349243 (or 349241 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 22430821956 in words is "twenty-two billion, four hundred thirty million, eight hundred twenty-one thousand, nine hundred fifty-six".