138033342 has 32 divisors (see below), whose sum is σ = 309468960. Its totient is φ = 45601920.

The previous prime is 138033341. The next prime is 138033361. The reversal of 138033342 is 243330831.

138033342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138033341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5209 + ... + 17412.

It is an arithmetic number, because the mean of its divisors is an integer number (9670905).

Almost surely, 2^138033342 is an apocalyptic number.

138033342 is an abundant number, since it is smaller than the sum of its proper divisors (171435618).

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

138033342 is a wasteful number, since it uses less digits than its factorization.

138033342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22745 (or 22739 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 138033342 is about 11748.7591685250. The cubic root of 138033342 is about 516.8065401849.

The spelling of 138033342 in words is "one hundred thirty-eight million, thirty-three thousand, three hundred forty-two".