422453976 has 128 divisors (see below), whose sum is σ = 1239183360. Its totient is φ = 117532800.

The previous prime is 422453971. The next prime is 422453989. The reversal of 422453976 is 679354224.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422453971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1276131 + ... + 1276461.

It is an arithmetic number, because the mean of its divisors is an integer number (9681120).

Almost surely, 2^422453976 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 422453976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (619591680).

422453976 is an abundant number, since it is smaller than the sum of its proper divisors (816729384).

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

422453976 is a wasteful number, since it uses less digits than its factorization.

422453976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 521 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 422453976 is about 20553.6852170116. The cubic root of 422453976 is about 750.3429400545.

The spelling of 422453976 in words is "four hundred twenty-two million, four hundred fifty-three thousand, nine hundred seventy-six".