623423232 has 54 divisors (see below), whose sum is σ = 1797489512. Its totient is φ = 207806976.

The previous prime is 623423221. The next prime is 623423243. The reversal of 623423232 is 232324326.

623423232 is a `hidden beast` number, since 6 + 2 + 3 + 423 + 232 = 666.

It is an interprime number because it is at equal distance from previous prime (623423221) and next prime (623423243).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 623423196 and 623423205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132988 + ... + 137595.

Almost surely, 2^623423232 is an apocalyptic number.

It is an amenable number.

623423232 is an abundant number, since it is smaller than the sum of its proper divisors (1174066280).

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

623423232 is a wasteful number, since it uses less digits than its factorization.

623423232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270605 (or 270588 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

The square root of 623423232 is about 24968.4447252928. Note that the first 3 decimals coincide. The cubic root of 623423232 is about 854.2683717605.

Adding to 623423232 its reverse (232324326), we get a palindrome (855747558).

The spelling of 623423232 in words is "six hundred twenty-three million, four hundred twenty-three thousand, two hundred thirty-two".