422578560 has 128 divisors (see below), whose sum is σ = 1361455200. Its totient is φ = 111476736.

The previous prime is 422578553. The next prime is 422578613. The reversal of 422578560 is 65875224.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185106 + ... + 187374.

Almost surely, 2^422578560 is an apocalyptic number.

422578560 is a gapful number since it is divisible by the number (40) 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 422578560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (680727600).

422578560 is an abundant number, since it is smaller than the sum of its proper divisors (938876640).

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

422578560 is a wasteful number, since it uses less digits than its factorization.

422578560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388 (or 2376 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 422578560 is about 20556.7156909853. The cubic root of 422578560 is about 750.4166928909.

The spelling of 422578560 in words is "four hundred twenty-two million, five hundred seventy-eight thousand, five hundred sixty".