422015240000 has 140 divisors (see below), whose sum is σ = 1048766837184. Its totient is φ = 168434112000.

The previous prime is 422015239993. The next prime is 422015240027. The reversal of 422015240000 is 42510224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 18508607 + ... + 18531393.

Almost surely, 2^422015240000 is an apocalyptic number.

422015240000 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 422015240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (524383418592).

422015240000 is an abundant number, since it is smaller than the sum of its proper divisors (626751597184).

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

422015240000 is an equidigital number, since it uses as much as digits as its factorization.

422015240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23282 (or 23257 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 422015240000 its reverse (42510224), we get a palindrome (422057750224).

The spelling of 422015240000 in words is "four hundred twenty-two billion, fifteen million, two hundred forty thousand".