422404388 has 24 divisors (see below), whose sum is σ = 872062464. Its totient is φ = 175190400.

The previous prime is 422404387. The next prime is 422404393. The reversal of 422404388 is 883404224.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (422404387) 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, 242453 + ... + 244188.

It is an arithmetic number, because the mean of its divisors is an integer number (36335936).

Almost surely, 2^422404388 is an apocalyptic number.

It is an amenable number.

422404388 is an abundant number, since it is smaller than the sum of its proper divisors (449658076).

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

422404388 is a wasteful number, since it uses less digits than its factorization.

422404388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486683 (or 486681 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 35.

The square root of 422404388 is about 20552.4788772547. The cubic root of 422404388 is about 750.3135802790.

The spelling of 422404388 in words is "four hundred twenty-two million, four hundred four thousand, three hundred eighty-eight".