422570500 has 48 divisors (see below), whose sum is σ = 1006806528. Its totient is φ = 153660000.

The previous prime is 422570497. The next prime is 422570521. The reversal of 422570500 is 5075224.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 32916 + ... + 43915.

It is an arithmetic number, because the mean of its divisors is an integer number (20975136).

Almost surely, 2^422570500 is an apocalyptic number.

It is an amenable number.

422570500 is an abundant number, since it is smaller than the sum of its proper divisors (584236028).

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

422570500 is a wasteful number, since it uses less digits than its factorization.

422570500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76861 (or 76849 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 422570500 is about 20556.5196470609. The cubic root of 422570500 is about 750.4119218672.

The spelling of 422570500 in words is "four hundred twenty-two million, five hundred seventy thousand, five hundred".