138046394 has 8 divisors (see below), whose sum is σ = 207399648. Its totient is φ = 68913180.

The previous prime is 138046367. The next prime is 138046421. The reversal of 138046394 is 493640831.

It is an interprime number because it is at equal distance from previous prime (138046367) and next prime (138046421).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53432 + ... + 55955.

It is an arithmetic number, because the mean of its divisors is an integer number (25924956).

Almost surely, 2^138046394 is an apocalyptic number.

138046394 is a deficient number, since it is larger than the sum of its proper divisors (69353254).

138046394 is a wasteful number, since it uses less digits than its factorization.

138046394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110020.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 138046394 is about 11749.3146183086. The cubic root of 138046394 is about 516.8228288735.

It can be divided in two parts, 1380 and 46394, that added together give a palindrome (47774).

The spelling of 138046394 in words is "one hundred thirty-eight million, forty-six thousand, three hundred ninety-four".