623621230 has 32 divisors (see below), whose sum is σ = 1187667360. Its totient is φ = 235105920.

The previous prime is 623621197. The next prime is 623621233. The reversal of 623621230 is 32126326.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 623621195 and 623621204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623621233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29100 + ... + 45760.

It is an arithmetic number, because the mean of its divisors is an integer number (37114605).

Almost surely, 2^623621230 is an apocalyptic number.

623621230 is a deficient number, since it is larger than the sum of its proper divisors (564046130).

623621230 is a wasteful number, since it uses less digits than its factorization.

623621230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16884.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 623621230 is about 24972.4093751484. The cubic root of 623621230 is about 854.3588001763.

Adding to 623621230 its reverse (32126326), we get a palindrome (655747556).

The spelling of 623621230 in words is "six hundred twenty-three million, six hundred twenty-one thousand, two hundred thirty".