422502624 has 72 divisors (see below), whose sum is σ = 1242947160. Its totient is φ = 135975168.

The previous prime is 422502623. The next prime is 422502631. The reversal of 422502624 is 426205224.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422502623) 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 11 ways as a sum of consecutive naturals, for example, 16942 + ... + 33645.

It is an arithmetic number, because the mean of its divisors is an integer number (17263155).

Almost surely, 2^422502624 is an apocalyptic number.

It is an amenable number.

422502624 is an abundant number, since it is smaller than the sum of its proper divisors (820444536).

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

422502624 is a wasteful number, since it uses less digits than its factorization.

422502624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50632 (or 50621 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 422502624 is about 20554.8686203537. The cubic root of 422502624 is about 750.3717410477.

Adding to 422502624 its reverse (426205224), we get a palindrome (848707848).

The spelling of 422502624 in words is "four hundred twenty-two million, five hundred two thousand, six hundred twenty-four".