422500344 has 96 divisors (see below), whose sum is σ = 1234086480. Its totient is φ = 120185856.

The previous prime is 422500319. The next prime is 422500349. The reversal of 422500344 is 443005224.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422500349) 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, 325104 + ... + 326400.

Almost surely, 2^422500344 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 422500344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (617043240).

422500344 is an abundant number, since it is smaller than the sum of its proper divisors (811586136).

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

422500344 is a wasteful number, since it uses less digits than its factorization.

422500344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597 (or 1586 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 422500344 is about 20554.8131589660. The cubic root of 422500344 is about 750.3703912725.

Adding to 422500344 its reverse (443005224), we get a palindrome (865505568).

The spelling of 422500344 in words is "four hundred twenty-two million, five hundred thousand, three hundred forty-four".