138374298 has 32 divisors (see below), whose sum is σ = 314046720. Its totient is φ = 45142560.

The previous prime is 138374261. The next prime is 138374309. The reversal of 138374298 is 892473831.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24723 + ... + 29798.

It is an arithmetic number, because the mean of its divisors is an integer number (9813960).

Almost surely, 2^138374298 is an apocalyptic number.

138374298 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

138374298 is an abundant number, since it is smaller than the sum of its proper divisors (175672422).

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

138374298 is a wasteful number, since it uses less digits than its factorization.

138374298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54579 (or 54573 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 138374298 is about 11763.2605173906. The cubic root of 138374298 is about 517.2317113862.

The spelling of 138374298 in words is "one hundred thirty-eight million, three hundred seventy-four thousand, two hundred ninety-eight".