422294440 has 32 divisors (see below), whose sum is σ = 952265160. Its totient is φ = 168544000.

The previous prime is 422294423. The next prime is 422294441. The reversal of 422294440 is 44492224.

It can be written as a sum of positive squares in 4 ways, for example, as 400560196 + 21734244 = 20014^2 + 4662^2 .

It is not an unprimeable number, because it can be changed into a prime (422294441) 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, 6990 + ... + 29890.

Almost surely, 2^422294440 is an apocalyptic number.

422294440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422294440 is an abundant number, since it is smaller than the sum of its proper divisors (529970720).

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

422294440 is a wasteful number, since it uses less digits than its factorization.

422294440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23373 (or 23369 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 422294440 is about 20549.8038920083. The cubic root of 422294440 is about 750.2484747084.

The spelling of 422294440 in words is "four hundred twenty-two million, two hundred ninety-four thousand, four hundred forty".