422345624 has 8 divisors (see below), whose sum is σ = 791898060. Its totient is φ = 211172808.

The previous prime is 422345621. The next prime is 422345669. The reversal of 422345624 is 426543224.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×422345624² = 356751652223898752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422345621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26396594 + ... + 26396609.

Almost surely, 2^422345624 is an apocalyptic number.

It is an amenable number.

422345624 is a deficient number, since it is larger than the sum of its proper divisors (369552436).

422345624 is a wasteful number, since it uses less digits than its factorization.

422345624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52793209 (or 52793205 counting only the distinct ones).

The product of its digits is 46080, while the sum is 32.

The square root of 422345624 is about 20551.0492189572. The cubic root of 422345624 is about 750.2787846556.

Adding to 422345624 its reverse (426543224), we get a palindrome (848888848).

The spelling of 422345624 in words is "four hundred twenty-two million, three hundred forty-five thousand, six hundred twenty-four".