22490358440 has 64 divisors (see below), whose sum is σ = 55234872000. Its totient is φ = 8173680640.

The previous prime is 22490358439. The next prime is 22490358467. The reversal of 22490358440 is 4485309422.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 817631 + ... + 844689.

It is an arithmetic number, because the mean of its divisors is an integer number (863044875).

Almost surely, 2^22490358440 is an apocalyptic number.

22490358440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22490358440 is an abundant number, since it is smaller than the sum of its proper divisors (32744513560).

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

22490358440 is a wasteful number, since it uses less digits than its factorization.

22490358440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28970 (or 28966 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 22490358440 in words is "twenty-two billion, four hundred ninety million, three hundred fifty-eight thousand, four hundred forty".