623142430 has 32 divisors (see below), whose sum is σ = 1221415200. Its totient is φ = 227993472.

The previous prime is 623142413. The next prime is 623142479. The reversal of 623142430 is 34241326.

It is a junction number, because it is equal to n+sod(n) for n = 623142395 and 623142404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51037 + ... + 62056.

It is an arithmetic number, because the mean of its divisors is an integer number (38169225).

Almost surely, 2^623142430 is an apocalyptic number.

623142430 is a deficient number, since it is larger than the sum of its proper divisors (598272770).

623142430 is a wasteful number, since it uses less digits than its factorization.

623142430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113148.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 623142430 is about 24962.8209543713. The cubic root of 623142430 is about 854.1400927789.

Adding to 623142430 its reverse (34241326), we get a palindrome (657383756).

The spelling of 623142430 in words is "six hundred twenty-three million, one hundred forty-two thousand, four hundred thirty".