22405502394 has 64 divisors (see below), whose sum is σ = 56677985280. Its totient is φ = 6494344560.

The previous prime is 22405502387. The next prime is 22405502407. The reversal of 22405502394 is 49320550422.

22405502394 is a `hidden beast` number, since 22 + 40 + 5 + 502 + 3 + 94 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 806332 + ... + 833655.

It is an arithmetic number, because the mean of its divisors is an integer number (885593520).

Almost surely, 2^22405502394 is an apocalyptic number.

22405502394 is an abundant number, since it is smaller than the sum of its proper divisors (34272482886).

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

22405502394 is a wasteful number, since it uses less digits than its factorization.

22405502394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640032 (or 1640026 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 22405502394 in words is "twenty-two billion, four hundred five million, five hundred two thousand, three hundred ninety-four".