345216886 has 32 divisors (see below), whose sum is σ = 601482240. Its totient is φ = 145544256.

The previous prime is 345216881. The next prime is 345216917. The reversal of 345216886 is 688612543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345216881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505101 + ... + 505783.

It is an arithmetic number, because the mean of its divisors is an integer number (18796320).

Almost surely, 2^345216886 is an apocalyptic number.

345216886 is a deficient number, since it is larger than the sum of its proper divisors (256265354).

345216886 is a wasteful number, since it uses less digits than its factorization.

345216886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228.

The product of its digits is 276480, while the sum is 43.

The square root of 345216886 is about 18580.0130785745. The cubic root of 345216886 is about 701.5048482983.

The spelling of 345216886 in words is "three hundred forty-five million, two hundred sixteen thousand, eight hundred eighty-six".