346478618 has 16 divisors (see below), whose sum is σ = 535176936. Its totient is φ = 168130560.

The previous prime is 346478611. The next prime is 346478681. The reversal of 346478618 is 816874643.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 210453049 + 136025569 = 14507^2 + 11663^2 .

It is not an unprimeable number, because it can be changed into a prime (346478611) 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 7 ways as a sum of consecutive naturals, for example, 4880 + ... + 26772.

Almost surely, 2^346478618 is an apocalyptic number.

346478618 is a deficient number, since it is larger than the sum of its proper divisors (188698318).

346478618 is a wasteful number, since it uses less digits than its factorization.

346478618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22129.

The product of its digits is 774144, while the sum is 47.

The square root of 346478618 is about 18613.9361232384. The cubic root of 346478618 is about 702.3584517435.

The spelling of 346478618 in words is "three hundred forty-six million, four hundred seventy-eight thousand, six hundred eighteen".