22408774280 has 16 divisors (see below), whose sum is σ = 50419742220. Its totient is φ = 8963509696.

The previous prime is 22408774277. The next prime is 22408774307. The reversal of 22408774280 is 8247780422.

It can be written as a sum of positive squares in 2 ways, for example, as 18769548004 + 3639226276 = 137002^2 + 60326^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280109639 + ... + 280109718.

Almost surely, 2^22408774280 is an apocalyptic number.

22408774280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22408774280 is an abundant number, since it is smaller than the sum of its proper divisors (28010967940).

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

22408774280 is a wasteful number, since it uses less digits than its factorization.

22408774280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560219368 (or 560219364 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 44.

The spelling of 22408774280 in words is "twenty-two billion, four hundred eight million, seven hundred seventy-four thousand, two hundred eighty".