346004778 has 48 divisors (see below), whose sum is σ = 840006720. Its totient is φ = 94558464.

The previous prime is 346004761. The next prime is 346004809. The reversal of 346004778 is 877400643.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18823 + ... + 32346.

It is an arithmetic number, because the mean of its divisors is an integer number (17500140).

Almost surely, 2^346004778 is an apocalyptic number.

346004778 is an abundant number, since it is smaller than the sum of its proper divisors (494001942).

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

346004778 is a wasteful number, since it uses less digits than its factorization.

346004778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51211 (or 51204 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 346004778 is about 18601.2036707306. The cubic root of 346004778 is about 702.0381266782.

The spelling of 346004778 in words is "three hundred forty-six million, four thousand, seven hundred seventy-eight".