22740159924 has 72 divisors (see below), whose sum is σ = 58423135680. Its totient is φ = 7456280832.

The previous prime is 22740159881. The next prime is 22740159941. The reversal of 22740159924 is 42995104722.

It is a super-2 number, since 2×22740159924² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22740159924.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1785772 + ... + 1798460.

It is an arithmetic number, because the mean of its divisors is an integer number (811432440).

Almost surely, 2^22740159924 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22740159924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29211567840).

22740159924 is an abundant number, since it is smaller than the sum of its proper divisors (35682975756).

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

22740159924 is a wasteful number, since it uses less digits than its factorization.

22740159924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13509 (or 13504 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 22740159924 in words is "twenty-two billion, seven hundred forty million, one hundred fifty-nine thousand, nine hundred twenty-four".