123489834 has 16 divisors (see below), whose sum is σ = 265978272. Its totient is φ = 37996848.

The previous prime is 123489791. The next prime is 123489857. The reversal of 123489834 is 438984321.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 791524 + ... + 791679.

It is an arithmetic number, because the mean of its divisors is an integer number (16623642).

Almost surely, 2^123489834 is an apocalyptic number.

123489834 is an abundant number, since it is smaller than the sum of its proper divisors (142488438).

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

123489834 is a wasteful number, since it uses less digits than its factorization.

123489834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583221.

The product of its digits is 165888, while the sum is 42.

The square root of 123489834 is about 11112.5979860697. The cubic root of 123489834 is about 497.9782816612.

The spelling of 123489834 in words is "one hundred twenty-three million, four hundred eighty-nine thousand, eight hundred thirty-four".