220683345 has 16 divisors (see below), whose sum is σ = 355048512. Its totient is φ = 117046080.

The previous prime is 220683317. The next prime is 220683383. The reversal of 220683345 is 543386022.

It is a happy number.

220683345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220683345 - 2⁷ = 220683217 is a prime.

It is a super-2 number, since 2×220683345² = 97402277520778050, 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, 37927 + ... + 43356.

It is an arithmetic number, because the mean of its divisors is an integer number (22190532).

Almost surely, 2^220683345 is an apocalyptic number.

It is an amenable number.

220683345 is a deficient number, since it is larger than the sum of its proper divisors (134365167).

220683345 is a wasteful number, since it uses less digits than its factorization.

220683345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81472.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 220683345 is about 14855.4146694059. The cubic root of 220683345 is about 604.3054616570.

The spelling of 220683345 in words is "two hundred twenty million, six hundred eighty-three thousand, three hundred forty-five".