422287398 has 48 divisors (see below), whose sum is σ = 1016177040. Its totient is φ = 129931776.

The previous prime is 422287387. The next prime is 422287423. The reversal of 422287398 is 893782224.

It is a super-2 number, since 2×422287398² = 356653293019220808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14011 + ... + 32262.

It is an arithmetic number, because the mean of its divisors is an integer number (21170355).

Almost surely, 2^422287398 is an apocalyptic number.

422287398 is an abundant number, since it is smaller than the sum of its proper divisors (593889642).

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

422287398 is a wasteful number, since it uses less digits than its factorization.

422287398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46310 (or 46291 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 422287398 is about 20549.6325514594. The cubic root of 422287398 is about 750.2443044118.

The spelling of 422287398 in words is "four hundred twenty-two million, two hundred eighty-seven thousand, three hundred ninety-eight".