422015000 has 80 divisors (see below), whose sum is σ = 1078810920. Its totient is φ = 153440000.

The previous prime is 422014993. The next prime is 422015039. The reversal of 422015000 is 510224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 51164 + ... + 58836.

Almost surely, 2^422015000 is an apocalyptic number.

422015000 is a gapful number since it is divisible by the number (40) 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 422015000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539405460).

422015000 is an abundant number, since it is smaller than the sum of its proper divisors (656795920).

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

422015000 is a wasteful number, since it uses less digits than its factorization.

422015000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7710 (or 7691 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 422015000 is about 20543.0036752175. The cubic root of 422015000 is about 750.0829537875.

Adding to 422015000 its reverse (510224), we get a palindrome (422525224).

The spelling of 422015000 in words is "four hundred twenty-two million, fifteen thousand".