623556142 has 8 divisors (see below), whose sum is σ = 1020364632. Its totient is φ = 283434600.

The previous prime is 623556119. The next prime is 623556163. The reversal of 623556142 is 241655326.

623556142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 623556098 and 623556107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14171709 + ... + 14171752.

It is an arithmetic number, because the mean of its divisors is an integer number (127545579).

Almost surely, 2^623556142 is an apocalyptic number.

623556142 is a deficient number, since it is larger than the sum of its proper divisors (396808490).

623556142 is a wasteful number, since it uses less digits than its factorization.

623556142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28343474.

The product of its digits is 43200, while the sum is 34.

The square root of 623556142 is about 24971.1061429004. The cubic root of 623556142 is about 854.3290757017.

The spelling of 623556142 in words is "six hundred twenty-three million, five hundred fifty-six thousand, one hundred forty-two".