123620874 has 32 divisors (see below), whose sum is σ = 269021760. Its totient is φ = 37642752.

The previous prime is 123620873. The next prime is 123620921. The reversal of 123620874 is 478026321.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123620873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 604 + ... + 15735.

It is an arithmetic number, because the mean of its divisors is an integer number (8406930).

Almost surely, 2^123620874 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123620874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134510880).

123620874 is an abundant number, since it is smaller than the sum of its proper divisors (145400886).

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

123620874 is a wasteful number, since it uses less digits than its factorization.

123620874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16454.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 123620874 is about 11118.4924337790. The cubic root of 123620874 is about 498.1543609489.

The spelling of 123620874 in words is "one hundred twenty-three million, six hundred twenty thousand, eight hundred seventy-four".