422805400 has 24 divisors (see below), whose sum is σ = 983023020. Its totient is φ = 169122080.

The previous prime is 422805391. The next prime is 422805437. The reversal of 422805400 is 4508224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 5 ways as a sum of consecutive naturals, for example, 1056814 + ... + 1057213.

Almost surely, 2^422805400 is an apocalyptic number.

422805400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422805400 is an abundant number, since it is smaller than the sum of its proper divisors (560217620).

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

422805400 is a wasteful number, since it uses less digits than its factorization.

422805400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114043 (or 2114034 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 422805400 is about 20562.2323690790. The cubic root of 422805400 is about 750.5509433310.

The spelling of 422805400 in words is "four hundred twenty-two million, eight hundred five thousand, four hundred".