422910090 has 48 divisors (see below), whose sum is σ = 1102350600. Its totient is φ = 112490496.

The previous prime is 422910083. The next prime is 422910107. The reversal of 422910090 is 90019224.

It can be written as a sum of positive squares in 4 ways, for example, as 368755209 + 54154881 = 19203^2 + 7359^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31066 + ... + 42554.

Almost surely, 2^422910090 is an apocalyptic number.

422910090 is an abundant number, since it is smaller than the sum of its proper divisors (679440510).

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

422910090 is a wasteful number, since it uses less digits than its factorization.

422910090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11911 (or 11908 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 422910090 is about 20564.7778981442. Note that the first 3 decimals coincide. The cubic root of 422910090 is about 750.6128856917.

The spelling of 422910090 in words is "four hundred twenty-two million, nine hundred ten thousand, ninety".