22474448640 has 216 divisors, whose sum is σ = 88868034528. Its totient is φ = 5136998400.

The previous prime is 22474448629. The next prime is 22474448657. The reversal of 22474448640 is 4684447422.

22474448640 is a `hidden beast` number, since 22 + 474 + 44 + 86 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 58711 + ... + 219990.

Almost surely, 2^22474448640 is an apocalyptic number.

22474448640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22474448640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44434017264).

22474448640 is an abundant number, since it is smaller than the sum of its proper divisors (66393585888).

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

22474448640 is a wasteful number, since it uses less digits than its factorization.

22474448640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278735 (or 278718 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 45.

The spelling of 22474448640 in words is "twenty-two billion, four hundred seventy-four million, four hundred forty-eight thousand, six hundred forty".