623830842 has 32 divisors (see below), whose sum is σ = 1418535360. Its totient is φ = 203106960.

The previous prime is 623830813. The next prime is 623830849. The reversal of 623830842 is 248038326.

It is a junction number, because it is equal to n+sod(n) for n = 623830797 and 623830806.

It is not an unprimeable number, because it can be changed into a prime (623830849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132009 + ... + 136652.

It is an arithmetic number, because the mean of its divisors is an integer number (44329230).

Almost surely, 2^623830842 is an apocalyptic number.

623830842 is an abundant number, since it is smaller than the sum of its proper divisors (794704518).

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

623830842 is a wasteful number, since it uses less digits than its factorization.

623830842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268715 (or 268709 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 623830842 is about 24976.6058943164. The cubic root of 623830842 is about 854.4545120109.

The spelling of 623830842 in words is "six hundred twenty-three million, eight hundred thirty thousand, eight hundred forty-two".