422055940 has 24 divisors (see below), whose sum is σ = 938454552. Its totient is φ = 158891520.

The previous prime is 422055919. The next prime is 422055973. The reversal of 422055940 is 49550224.

It can be written as a sum of positive squares in 4 ways, for example, as 9884736 + 412171204 = 3144^2 + 20302^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620331 + ... + 621010.

It is an arithmetic number, because the mean of its divisors is an integer number (39102273).

Almost surely, 2^422055940 is an apocalyptic number.

It is an amenable number.

422055940 is an abundant number, since it is smaller than the sum of its proper divisors (516398612).

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

422055940 is a wasteful number, since it uses less digits than its factorization.

422055940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241367 (or 1241365 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 422055940 is about 20544.0000973520. Note that the first 4 decimals coincide. The cubic root of 422055940 is about 750.1072083781.

The spelling of 422055940 in words is "four hundred twenty-two million, fifty-five thousand, nine hundred forty".