422491344 has 160 divisors (see below), whose sum is σ = 1274382720. Its totient is φ = 120186880.

The previous prime is 422491339. The next prime is 422491403. The reversal of 422491344 is 443194224.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1085902 + ... + 1086290.

It is an arithmetic number, because the mean of its divisors is an integer number (7964892).

Almost surely, 2^422491344 is an apocalyptic number.

422491344 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422491344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (637191360).

422491344 is an abundant number, since it is smaller than the sum of its proper divisors (851891376).

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

422491344 is a wasteful number, since it uses less digits than its factorization.

422491344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 422 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 422491344 is about 20554.5942309743. The cubic root of 422491344 is about 750.3650631652.

The spelling of 422491344 in words is "four hundred twenty-two million, four hundred ninety-one thousand, three hundred forty-four".