422553456 has 160 divisors (see below), whose sum is σ = 1326859520. Its totient is φ = 127961856.

The previous prime is 422553449. The next prime is 422553473. The reversal of 422553456 is 654355224.

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

It is a self number, because there is not a number n which added to its sum of digits gives 422553456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 375711 + ... + 376833.

It is an arithmetic number, because the mean of its divisors is an integer number (8292872).

Almost surely, 2^422553456 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 422553456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663429760).

422553456 is an abundant number, since it is smaller than the sum of its proper divisors (904306064).

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

422553456 is a wasteful number, since it uses less digits than its factorization.

422553456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220 (or 1208 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The square root of 422553456 is about 20556.1050785405. The cubic root of 422553456 is about 750.4018326689.

It can be divided in two parts, 422 and 553456, that added together give a triangular number (553878 = T₁₀₅₂).

The spelling of 422553456 in words is "four hundred twenty-two million, five hundred fifty-three thousand, four hundred fifty-six".