346396138 has 12 divisors (see below), whose sum is σ = 571124610. Its totient is φ = 157452680.

The previous prime is 346396133. The next prime is 346396153. The reversal of 346396138 is 831693643.

346396138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 189971089 + 156425049 = 13783^2 + 12507^2 .

It is a junction number, because it is equal to n+sod(n) for n = 346396094 and 346396103.

It is not an unprimeable number, because it can be changed into a prime (346396133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 715453 + ... + 715936.

Almost surely, 2^346396138 is an apocalyptic number.

346396138 is a deficient number, since it is larger than the sum of its proper divisors (224728472).

346396138 is a wasteful number, since it uses less digits than its factorization.

346396138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431413 (or 1431402 counting only the distinct ones).

The product of its digits is 279936, while the sum is 43.

The square root of 346396138 is about 18611.7204470731. The cubic root of 346396138 is about 702.3027146604.

The spelling of 346396138 in words is "three hundred forty-six million, three hundred ninety-six thousand, one hundred thirty-eight".