22481998890 has 32 divisors (see below), whose sum is σ = 58107321216. Its totient is φ = 5534030400.

The previous prime is 22481998837. The next prime is 22481998897. The reversal of 22481998890 is 9889918422.

It is a super-2 number, since 2×22481998890² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22481998897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28822686 + ... + 28823465.

It is an arithmetic number, because the mean of its divisors is an integer number (1815853788).

Almost surely, 2^22481998890 is an apocalyptic number.

22481998890 is an abundant number, since it is smaller than the sum of its proper divisors (35625322326).

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

22481998890 is a wasteful number, since it uses less digits than its factorization.

22481998890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57646174.

The product of its (nonzero) digits is 5971968, while the sum is 60.

The spelling of 22481998890 in words is "twenty-two billion, four hundred eighty-one million, nine hundred ninety-eight thousand, eight hundred ninety".