138793692 has 24 divisors (see below), whose sum is σ = 331751952. Its totient is φ = 45136000.

The previous prime is 138793687. The next prime is 138793693. The reversal of 138793692 is 296397831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138793693) 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 7 ways as a sum of consecutive naturals, for example, 140559 + ... + 141542.

It is an arithmetic number, because the mean of its divisors is an integer number (13822998).

Almost surely, 2^138793692 is an apocalyptic number.

138793692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

138793692 is an abundant number, since it is smaller than the sum of its proper divisors (192958260).

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

138793692 is a wasteful number, since it uses less digits than its factorization.

138793692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282149 (or 282147 counting only the distinct ones).

The product of its digits is 489888, while the sum is 48.

The square root of 138793692 is about 11781.0734655209. The cubic root of 138793692 is about 517.7537377355.

It can be divided in two parts, 13879 and 3692, that added together give a palindrome (17571).

The spelling of 138793692 in words is "one hundred thirty-eight million, seven hundred ninety-three thousand, six hundred ninety-two".