422939272 has 64 divisors (see below), whose sum is σ = 968889600. Its totient is φ = 169128960.

The previous prime is 422939263. The next prime is 422939281. The reversal of 422939272 is 272939224.

It is an interprime number because it is at equal distance from previous prime (422939263) and next prime (422939281).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48804 + ... + 56812.

It is an arithmetic number, because the mean of its divisors is an integer number (15138900).

Almost surely, 2^422939272 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 422939272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (484444800).

422939272 is an abundant number, since it is smaller than the sum of its proper divisors (545950328).

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

422939272 is a wasteful number, since it uses less digits than its factorization.

422939272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8086 (or 8082 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 422939272 is about 20565.4874000107. The cubic root of 422939272 is about 750.6301501032.

The spelling of 422939272 in words is "four hundred twenty-two million, nine hundred thirty-nine thousand, two hundred seventy-two".