123439396 has 24 divisors (see below), whose sum is σ = 225827840. Its totient is φ = 58968000.

The previous prime is 123439391. The next prime is 123439451. The reversal of 123439396 is 693934321.

It is not an unprimeable number, because it can be changed into a prime (123439391) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3496 + ... + 16096.

Almost surely, 2^123439396 is an apocalyptic number.

It is an amenable number.

123439396 is a deficient number, since it is larger than the sum of its proper divisors (102388444).

123439396 is a wasteful number, since it uses less digits than its factorization.

123439396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12715 (or 12713 counting only the distinct ones).

The product of its digits is 104976, while the sum is 40.

The square root of 123439396 is about 11110.3283479832. The cubic root of 123439396 is about 497.9104745980.

The spelling of 123439396 in words is "one hundred twenty-three million, four hundred thirty-nine thousand, three hundred ninety-six".