22402820400 has 60 divisors (see below), whose sum is σ = 71763705192. Its totient is φ = 5974085120.

The previous prime is 22402820393. The next prime is 22402820431. The reversal of 22402820400 is 402820422.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9333309 + ... + 9335708.

Almost surely, 2^22402820400 is an apocalyptic number.

22402820400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22402820400 is an abundant number, since it is smaller than the sum of its proper divisors (49360884792).

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

22402820400 is a wasteful number, since it uses less digits than its factorization.

22402820400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18669038 (or 18669027 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The spelling of 22402820400 in words is "twenty-two billion, four hundred two million, eight hundred twenty thousand, four hundred".