422451400 has 48 divisors (see below), whose sum is σ = 1122517440. Its totient is φ = 144840000.

The previous prime is 422451397. The next prime is 422451401. The reversal of 422451400 is 4154224.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (422451401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149476 + ... + 152275.

It is an arithmetic number, because the mean of its divisors is an integer number (23385780).

Almost surely, 2^422451400 is an apocalyptic number.

422451400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422451400 is an abundant number, since it is smaller than the sum of its proper divisors (700066040).

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

422451400 is a wasteful number, since it uses less digits than its factorization.

422451400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301774 (or 301765 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 422451400 is about 20553.6225517547. The cubic root of 422451400 is about 750.3414149279.

The spelling of 422451400 in words is "four hundred twenty-two million, four hundred fifty-one thousand, four hundred".