123896942 has 24 divisors (see below), whose sum is σ = 206700696. Its totient is φ = 55632096.

The previous prime is 123896939. The next prime is 123896947. The reversal of 123896942 is 249698321.

It is a junction number, because it is equal to n+sod(n) for n = 123896893 and 123896902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123896947) 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 11 ways as a sum of consecutive naturals, for example, 7553 + ... + 17459.

It is an arithmetic number, because the mean of its divisors is an integer number (8612529).

Almost surely, 2^123896942 is an apocalyptic number.

123896942 is a deficient number, since it is larger than the sum of its proper divisors (82803754).

123896942 is a wasteful number, since it uses less digits than its factorization.

123896942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9972 (or 9959 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The square root of 123896942 is about 11130.9003229748. The cubic root of 123896942 is about 498.5249084896.

The spelling of 123896942 in words is "one hundred twenty-three million, eight hundred ninety-six thousand, nine hundred forty-two".