124239842 has 16 divisors (see below), whose sum is σ = 200270880. Its totient is φ = 57592128.

The previous prime is 124239839. The next prime is 124239851. The reversal of 124239842 is 248932421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24992 + ... + 29547.

It is an arithmetic number, because the mean of its divisors is an integer number (12516930).

Almost surely, 2^124239842 is an apocalyptic number.

124239842 is a deficient number, since it is larger than the sum of its proper divisors (76031038).

124239842 is a wasteful number, since it uses less digits than its factorization.

124239842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54625.

The product of its digits is 27648, while the sum is 35.

The square root of 124239842 is about 11146.2927469181. The cubic root of 124239842 is about 498.9843944876.

The spelling of 124239842 in words is "one hundred twenty-four million, two hundred thirty-nine thousand, eight hundred forty-two".