623423542 has 16 divisors (see below), whose sum is σ = 1069367040. Its totient is φ = 267021288.

The previous prime is 623423539. The next prime is 623423597. The reversal of 623423542 is 245324326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12559 + ... + 37477.

It is an arithmetic number, because the mean of its divisors is an integer number (66835440).

Almost surely, 2^623423542 is an apocalyptic number.

623423542 is a deficient number, since it is larger than the sum of its proper divisors (445943498).

623423542 is a wasteful number, since it uses less digits than its factorization.

623423542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26715.

The product of its digits is 34560, while the sum is 31.

The square root of 623423542 is about 24968.4509331276. The cubic root of 623423542 is about 854.2685133568.

Adding to 623423542 its reverse (245324326), we get a palindrome (868747868).

The spelling of 623423542 in words is "six hundred twenty-three million, four hundred twenty-three thousand, five hundred forty-two".