2820218315 has 16 divisors (see below), whose sum is σ = 3659582592. Its totient is φ = 2078275584.

The previous prime is 2820218309. The next prime is 2820218321. The reversal of 2820218315 is 5138120282.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2820218309) and next prime (2820218321).

It is a cyclic number.

It is not a de Polignac number, because 2820218315 - 2⁴ = 2820218299 is a prime.

It is a super-2 number, since 2×2820218315² = 15907262688522878450, which contains 22 as substring.

It is a Duffinian number.

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, 348974 + ... + 356963.

It is an arithmetic number, because the mean of its divisors is an integer number (228723912).

Almost surely, 2^2820218315 is an apocalyptic number.

2820218315 is a deficient number, since it is larger than the sum of its proper divisors (839364277).

2820218315 is a wasteful number, since it uses less digits than its factorization.

2820218315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706006.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 2820218315 is about 53105.7277042693. The cubic root of 2820218315 is about 1412.8441017195.

Adding to 2820218315 its reverse (5138120282), we get a palindrome (7958338597).

The spelling of 2820218315 in words is "two billion, eight hundred twenty million, two hundred eighteen thousand, three hundred fifteen".