422691492 has 24 divisors (see below), whose sum is σ = 1007266176. Its totient is φ = 137899168.

The previous prime is 422691487. The next prime is 422691497. The reversal of 422691492 is 294196224.

It is an interprime number because it is at equal distance from previous prime (422691487) and next prime (422691497).

It is a self number, because there is not a number n which added to its sum of digits gives 422691492.

It is not an unprimeable number, because it can be changed into a prime (422691497) 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, 374163 + ... + 375290.

It is an arithmetic number, because the mean of its divisors is an integer number (41969424).

Almost surely, 2^422691492 is an apocalyptic number.

It is an amenable number.

422691492 is an abundant number, since it is smaller than the sum of its proper divisors (584574684).

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

422691492 is a wasteful number, since it uses less digits than its factorization.

422691492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749507 (or 749505 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 422691492 is about 20559.4623470557. The cubic root of 422691492 is about 750.4835353023.

The spelling of 422691492 in words is "four hundred twenty-two million, six hundred ninety-one thousand, four hundred ninety-two".