2118516 has 24 divisors (see below), whose sum is σ = 5037984. Its totient is φ = 692640.

The previous prime is 2118503. The next prime is 2118517. The reversal of 2118516 is 6158112.

It is a super-2 number, since 2×2118516² = 8976220084512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1030 + ... + 2301.

It is an arithmetic number, because the mean of its divisors is an integer number (209916).

2^2118516 is an apocalyptic number.

It is an amenable number.

2118516 is an abundant number, since it is smaller than the sum of its proper divisors (2919468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2118516 is a wasteful number, since it uses less digits than its factorization.

2118516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391 (or 3389 counting only the distinct ones).

The product of its digits is 480, while the sum is 24.

The square root of 2118516 is about 1455.5122809513. The cubic root of 2118516 is about 128.4331840357.

The spelling of 2118516 in words is "two million, one hundred eighteen thousand, five hundred sixteen".