138335344 has 20 divisors (see below), whose sum is σ = 306314224. Its totient is φ = 59286528.

The previous prime is 138335321. The next prime is 138335347. The reversal of 138335344 is 443533831.

138335344 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138335347) 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 3 ways as a sum of consecutive naturals, for example, 617457 + ... + 617680.

Almost surely, 2^138335344 is an apocalyptic number.

138335344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

138335344 is an abundant number, since it is smaller than the sum of its proper divisors (167978880).

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

138335344 is a wasteful number, since it uses less digits than its factorization.

138335344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235152 (or 1235146 counting only the distinct ones).

The product of its digits is 51840, while the sum is 34.

The square root of 138335344 is about 11761.6046524273. The cubic root of 138335344 is about 517.1831712181.

The spelling of 138335344 in words is "one hundred thirty-eight million, three hundred thirty-five thousand, three hundred forty-four".