422625544 has 64 divisors (see below), whose sum is σ = 892866240. Its totient is φ = 185852160.

The previous prime is 422625523. The next prime is 422625547. The reversal of 422625544 is 445526224.

It is a super-2 number, since 2×422625544² = 357224700882591872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (422625547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 953787 + ... + 954229.

It is an arithmetic number, because the mean of its divisors is an integer number (13951035).

Almost surely, 2^422625544 is an apocalyptic number.

422625544 is a gapful number since it is divisible by the number (44) 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 422625544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446433120).

422625544 is an abundant number, since it is smaller than the sum of its proper divisors (470240696).

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

422625544 is a wasteful number, since it uses less digits than its factorization.

422625544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790 (or 786 counting only the distinct ones).

The product of its digits is 76800, while the sum is 34.

The square root of 422625544 is about 20557.8584487782. The cubic root of 422625544 is about 750.4445033185. Note that the first 3 decimals are identical.

The spelling of 422625544 in words is "four hundred twenty-two million, six hundred twenty-five thousand, five hundred forty-four".