345372818 has 32 divisors (see below), whose sum is σ = 608931840. Its totient is φ = 143836560.

The previous prime is 345372809. The next prime is 345372827. The reversal of 345372818 is 818273543.

It is an interprime number because it is at equal distance from previous prime (345372809) and next prime (345372827).

It is a super-2 number, since 2×345372818² = 238564766826522248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125663 + ... + 128381.

It is an arithmetic number, because the mean of its divisors is an integer number (19029120).

Almost surely, 2^345372818 is an apocalyptic number.

345372818 is a deficient number, since it is larger than the sum of its proper divisors (263559022).

345372818 is a wasteful number, since it uses less digits than its factorization.

345372818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2982.

The product of its digits is 161280, while the sum is 41.

The square root of 345372818 is about 18584.2088343841. The cubic root of 345372818 is about 701.6104539748.

The spelling of 345372818 in words is "three hundred forty-five million, three hundred seventy-two thousand, eight hundred eighteen".