123838692 has 12 divisors (see below), whose sum is σ = 288956976. Its totient is φ = 41279560.

The previous prime is 123838691. The next prime is 123838711. The reversal of 123838692 is 296838321.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (123838691) 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, 5159934 + ... + 5159957.

It is an arithmetic number, because the mean of its divisors is an integer number (24079748).

Almost surely, 2^123838692 is an apocalyptic number.

123838692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123838692 is an abundant number, since it is smaller than the sum of its proper divisors (165118284).

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

123838692 is a wasteful number, since it uses less digits than its factorization.

123838692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10319898 (or 10319896 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 123838692 is about 11128.2834255783. The cubic root of 123838692 is about 498.4467692783.

The spelling of 123838692 in words is "one hundred twenty-three million, eight hundred thirty-eight thousand, six hundred ninety-two".