346405394 has 8 divisors (see below), whose sum is σ = 519689520. Its totient is φ = 173175556.

The previous prime is 346405393. The next prime is 346405421. The reversal of 346405394 is 493504643.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (346405393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12077 + ... + 28959.

It is an arithmetic number, because the mean of its divisors is an integer number (64961190).

Almost surely, 2^346405394 is an apocalyptic number.

346405394 is a deficient number, since it is larger than the sum of its proper divisors (173284126).

346405394 is a wasteful number, since it uses less digits than its factorization.

346405394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27144.

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 346405394 is about 18611.9691059275. The cubic root of 346405394 is about 702.3089699803.

The spelling of 346405394 in words is "three hundred forty-six million, four hundred five thousand, three hundred ninety-four".