422158392 has 80 divisors (see below), whose sum is σ = 1188795960. Its totient is φ = 139962816.

The previous prime is 422158361. The next prime is 422158421. The reversal of 422158392 is 293851224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 126003 + ... + 129309.

Almost surely, 2^422158392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422158392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (594397980).

422158392 is an abundant number, since it is smaller than the sum of its proper divisors (766637568).

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

422158392 is a wasteful number, since it uses less digits than its factorization.

422158392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3522 (or 3509 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 422158392 is about 20546.4934234531. The cubic root of 422158392 is about 750.1678984107.

The spelling of 422158392 in words is "four hundred twenty-two million, one hundred fifty-eight thousand, three hundred ninety-two".