422845420 has 24 divisors (see below), whose sum is σ = 940209984. Its totient is φ = 159188736.

The previous prime is 422845411. The next prime is 422845427. The reversal of 422845420 is 24548224.

It is not an unprimeable number, because it can be changed into a prime (422845427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621492 + ... + 622171.

It is an arithmetic number, because the mean of its divisors is an integer number (39175416).

Almost surely, 2^422845420 is an apocalyptic number.

It is an amenable number.

422845420 is an abundant number, since it is smaller than the sum of its proper divisors (517364564).

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

422845420 is a wasteful number, since it uses less digits than its factorization.

422845420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243689 (or 1243687 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 31.

The square root of 422845420 is about 20563.2054894173. The cubic root of 422845420 is about 750.5746233353.

The spelling of 422845420 in words is "four hundred twenty-two million, eight hundred forty-five thousand, four hundred twenty".