422640488 has 8 divisors (see below), whose sum is σ = 792450930. Its totient is φ = 211320240.

The previous prime is 422640473. The next prime is 422640499. The reversal of 422640488 is 884046224.

It can be written as a sum of positive squares in only one way, i.e., 377991364 + 44649124 = 19442^2 + 6682^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26415023 + ... + 26415038.

Almost surely, 2^422640488 is an apocalyptic number.

It is an amenable number.

422640488 is a deficient number, since it is larger than the sum of its proper divisors (369810442).

422640488 is a wasteful number, since it uses less digits than its factorization.

422640488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52830067 (or 52830063 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 38.

The square root of 422640488 is about 20558.2219075483. The cubic root of 422640488 is about 750.4533484302.

The spelling of 422640488 in words is "four hundred twenty-two million, six hundred forty thousand, four hundred eighty-eight".