422045500 has 48 divisors (see below), whose sum is σ = 924251328. Its totient is φ = 168360000.

The previous prime is 422045489. The next prime is 422045509. The reversal of 422045500 is 5540224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422045509) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 229585 + ... + 231415.

It is an arithmetic number, because the mean of its divisors is an integer number (19255236).

Almost surely, 2^422045500 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 422045500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (462125664).

422045500 is an abundant number, since it is smaller than the sum of its proper divisors (502205828).

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

422045500 is a wasteful number, since it uses less digits than its factorization.

422045500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2311 (or 2299 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 422045500 is about 20543.7460069969. The cubic root of 422045500 is about 750.1010234288.

Adding to 422045500 its reverse (5540224), we get a palindrome (427585724).

The spelling of 422045500 in words is "four hundred twenty-two million, forty-five thousand, five hundred".