22479461440 has 56 divisors (see below), whose sum is σ = 53556526872. Its totient is φ = 8987197440.

The previous prime is 22479461387. The next prime is 22479461441. The reversal of 22479461440 is 4416497422.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2310917184 + 20168544256 = 48072^2 + 142016^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22479461441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649042 + ... + 682798.

Almost surely, 2^22479461440 is an apocalyptic number.

22479461440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22479461440 is an abundant number, since it is smaller than the sum of its proper divisors (31077065432).

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

22479461440 is a wasteful number, since it uses less digits than its factorization.

22479461440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35855 (or 35845 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 22479461440 in words is "twenty-two billion, four hundred seventy-nine million, four hundred sixty-one thousand, four hundred forty".