422513300 has 72 divisors (see below), whose sum is σ = 1010372832. Its totient is φ = 152080000.

The previous prime is 422513293. The next prime is 422513303. The reversal of 422513300 is 3315224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422513303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109199 + ... + 113001.

It is an arithmetic number, because the mean of its divisors is an integer number (14032956).

Almost surely, 2^422513300 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 422513300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (505186416).

422513300 is an abundant number, since it is smaller than the sum of its proper divisors (587859532).

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

422513300 is a wasteful number, since it uses less digits than its factorization.

422513300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3929 (or 3922 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 422513300 is about 20555.1283138783. The cubic root of 422513300 is about 750.3780612461.

Adding to 422513300 its reverse (3315224), we get a palindrome (425828524).

The spelling of 422513300 in words is "four hundred twenty-two million, five hundred thirteen thousand, three hundred".