422949500 has 72 divisors (see below), whose sum is σ = 976968720. Its totient is φ = 159516000.

The previous prime is 422949473. The next prime is 422949503. The reversal of 422949500 is 5949224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422949503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2004395 + ... + 2004605.

It is an arithmetic number, because the mean of its divisors is an integer number (13569010).

Almost surely, 2^422949500 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 422949500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488484360).

422949500 is an abundant number, since it is smaller than the sum of its proper divisors (554019220).

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

422949500 is a wasteful number, since it uses less digits than its factorization.

422949500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 422949500 is about 20565.7360675469. The cubic root of 422949500 is about 750.6362009193.

The spelling of 422949500 in words is "four hundred twenty-two million, nine hundred forty-nine thousand, five hundred".