22042450089 has 45 divisors (see below), whose sum is σ = 35108626215. Its totient is φ = 13326397920.

The previous prime is 22042450081. The next prime is 22042450099. The reversal of 22042450089 is 98005424022.

The square root of 22042450089 is 148467.

It is a perfect power (a square), and thus also a powerful number.

22042450089 is a `hidden beast` number, since 220 + 424 + 5 + 0 + 0 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20144976489 + 1897473600 = 141933^2 + 43560^2 .

It is not a de Polignac number, because 22042450089 - 2³ = 22042450081 is a prime.

It is a super-2 number, since 2×22042450089² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22042450081) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 53893317 + ... + 53893725.

Almost surely, 2^22042450089 is an apocalyptic number.

22042450089 is the 148467-th square number.

22042450089 is the 74234-th centered octagonal number.

It is an amenable number.

22042450089 is a deficient number, since it is larger than the sum of its proper divisors (13066176126).

22042450089 is an frugal number, since it uses more digits than its factorization.

22042450089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

Multiplying 22042450089 by its sum of digits (36), we get a square (793528203204 = 890802²).

The spelling of 22042450089 in words is "twenty-two billion, forty-two million, four hundred fifty thousand, eighty-nine".