345210778 has 32 divisors (see below), whose sum is σ = 577886400. Its totient is φ = 153346560.

The previous prime is 345210763. The next prime is 345210779. The reversal of 345210778 is 877012543.

It is not an unprimeable number, because it can be changed into a prime (345210779) 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 15 ways as a sum of consecutive naturals, for example, 176148 + ... + 178096.

It is an arithmetic number, because the mean of its divisors is an integer number (18058950).

Almost surely, 2^345210778 is an apocalyptic number.

345210778 is a deficient number, since it is larger than the sum of its proper divisors (232675622).

345210778 is a wasteful number, since it uses less digits than its factorization.

345210778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 345210778 is about 18579.8487076725. The cubic root of 345210778 is about 701.5007109796.

The spelling of 345210778 in words is "three hundred forty-five million, two hundred ten thousand, seven hundred seventy-eight".