138892346 has 8 divisors (see below), whose sum is σ = 220593780. Its totient is φ = 65361088.

The previous prime is 138892343. The next prime is 138892361. The reversal of 138892346 is 643298831.

It can be written as a sum of positive squares in 2 ways, for example, as 121992025 + 16900321 = 11045^2 + 4111^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 138892297 and 138892306.

It is not an unprimeable number, because it can be changed into a prime (138892343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2042501 + ... + 2042568.

Almost surely, 2^138892346 is an apocalyptic number.

138892346 is a deficient number, since it is larger than the sum of its proper divisors (81701434).

138892346 is a wasteful number, since it uses less digits than its factorization.

138892346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085088.

The product of its digits is 248832, while the sum is 44.

The square root of 138892346 is about 11785.2596916657. The cubic root of 138892346 is about 517.8763811092.

The spelling of 138892346 in words is "one hundred thirty-eight million, eight hundred ninety-two thousand, three hundred forty-six".