346453978 has 16 divisors (see below), whose sum is σ = 559964160. Its totient is φ = 159813936.

The previous prime is 346453973. The next prime is 346454029. The reversal of 346453978 is 879354643.

346453978 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (346453973) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 85351 + ... + 89317.

It is an arithmetic number, because the mean of its divisors is an integer number (34997760).

Almost surely, 2^346453978 is an apocalyptic number.

346453978 is a deficient number, since it is larger than the sum of its proper divisors (213510182).

346453978 is a wasteful number, since it uses less digits than its factorization.

346453978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7341.

The product of its digits is 2177280, while the sum is 49.

The square root of 346453978 is about 18613.2742417878. The cubic root of 346453978 is about 702.3418018247.

The spelling of 346453978 in words is "three hundred forty-six million, four hundred fifty-three thousand, nine hundred seventy-eight".