123328742 has 8 divisors (see below), whose sum is σ = 185071656. Its totient is φ = 61638192.

The previous prime is 123328739. The next prime is 123328747. The reversal of 123328742 is 247823321.

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 = 123328699 and 123328708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123328747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6548 + ... + 17015.

It is an arithmetic number, because the mean of its divisors is an integer number (23133957).

Almost surely, 2^123328742 is an apocalyptic number.

123328742 is a deficient number, since it is larger than the sum of its proper divisors (61742914).

123328742 is a wasteful number, since it uses less digits than its factorization.

123328742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26182.

The product of its digits is 16128, while the sum is 32.

The square root of 123328742 is about 11105.3474506654. The cubic root of 123328742 is about 497.7616505362.

The spelling of 123328742 in words is "one hundred twenty-three million, three hundred twenty-eight thousand, seven hundred forty-two".