422451468 has 72 divisors (see below), whose sum is σ = 1111546800. Its totient is φ = 135117696.

The previous prime is 422451467. The next prime is 422451481. The reversal of 422451468 is 864154224.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (422451461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179443 + ... + 181781.

It is an arithmetic number, because the mean of its divisors is an integer number (15438150).

Almost surely, 2^422451468 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 422451468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (555773400).

422451468 is an abundant number, since it is smaller than the sum of its proper divisors (689095332).

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

422451468 is a wasteful number, since it uses less digits than its factorization.

422451468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551 (or 2546 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 422451468 is about 20553.6242059643. The cubic root of 422451468 is about 750.3414551875.

The spelling of 422451468 in words is "four hundred twenty-two million, four hundred fifty-one thousand, four hundred sixty-eight".