422642624 has 14 divisors (see below), whose sum is σ = 838681584. Its totient is φ = 211321280.

The previous prime is 422642609. The next prime is 422642651. The reversal of 422642624 is 426246224.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3301832 + ... + 3301959.

Almost surely, 2^422642624 is an apocalyptic number.

It is an amenable number.

422642624 is a deficient number, since it is larger than the sum of its proper divisors (416038960).

422642624 is an equidigital number, since it uses as much as digits as its factorization.

422642624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6603803 (or 6603793 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

The square root of 422642624 is about 20558.2738575008. The cubic root of 422642624 is about 750.4546126770.

Adding to 422642624 its reverse (426246224), we get a palindrome (848888848).

The spelling of 422642624 in words is "four hundred twenty-two million, six hundred forty-two thousand, six hundred twenty-four".