422572500 has 180 divisors, whose sum is σ = 1526036512. Its totient is φ = 96552000.

The previous prime is 422572499. The next prime is 422572571. The reversal of 422572500 is 5275224.

422572500 is a `hidden beast` number, since 42 + 2 + 572 + 50 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 156159 + ... + 158841.

Almost surely, 2^422572500 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 422572500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (763018256).

422572500 is an abundant number, since it is smaller than the sum of its proper divisors (1103464012).

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

422572500 is a wasteful number, since it uses less digits than its factorization.

422572500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720 (or 2700 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 422572500 is about 20556.5682933704. The cubic root of 422572500 is about 750.4131057497.

The spelling of 422572500 in words is "four hundred twenty-two million, five hundred seventy-two thousand, five hundred".