22603247540 has 24 divisors (see below), whose sum is σ = 47616570792. Its totient is φ = 9012775040.

The previous prime is 22603247521. The next prime is 22603247551. The reversal of 22603247540 is 4574230622.

It can be written as a sum of positive squares in 4 ways, for example, as 71436304 + 22531811236 = 8452^2 + 150106^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22603247540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1776251 + ... + 1788930.

It is an arithmetic number, because the mean of its divisors is an integer number (1984023783).

Almost surely, 2^22603247540 is an apocalyptic number.

22603247540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22603247540 is an abundant number, since it is smaller than the sum of its proper divisors (25013323252).

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

22603247540 is a wasteful number, since it uses less digits than its factorization.

22603247540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565507 (or 3565505 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 35.

The spelling of 22603247540 in words is "twenty-two billion, six hundred three million, two hundred forty-seven thousand, five hundred forty".