346780918 has 12 divisors (see below), whose sum is σ = 571759020. Its totient is φ = 157627580.

The previous prime is 346780897. The next prime is 346780949. The reversal of 346780918 is 819087643.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 716248 + ... + 716731.

It is an arithmetic number, because the mean of its divisors is an integer number (47646585).

Almost surely, 2^346780918 is an apocalyptic number.

346780918 is a deficient number, since it is larger than the sum of its proper divisors (224978102).

346780918 is a wasteful number, since it uses less digits than its factorization.

346780918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433003 (or 1432992 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 346780918 is about 18622.0546127435. The cubic root of 346780918 is about 702.5626598617.

The spelling of 346780918 in words is "three hundred forty-six million, seven hundred eighty thousand, nine hundred eighteen".