22540740488 has 36 divisors (see below), whose sum is σ = 49170599415. Its totient is φ = 9659043408.

The previous prime is 22540740463. The next prime is 22540740493. The reversal of 22540740488 is 88404704522.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 11270370244 + 11270370244 = 106162^2 + 106162^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106162.

It is a super-5 number, since 5×22540740488⁵ (a number of 53 digits) contains 55555 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2968745 + ... + 2976327.

Almost surely, 2^22540740488 is an apocalyptic number.

22540740488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22540740488 is an abundant number, since it is smaller than the sum of its proper divisors (26629858927).

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

22540740488 is an frugal number, since it uses more digits than its factorization.

22540740488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15186 (or 7592 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 44.

The spelling of 22540740488 in words is "twenty-two billion, five hundred forty million, seven hundred forty thousand, four hundred eighty-eight".