2118902 has 8 divisors (see below), whose sum is σ = 3192696. Its totient is φ = 1054672.

The previous prime is 2118889. The next prime is 2118917. The reversal of 2118902 is 2098112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2118902³ = 28539993338153060424, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1808 + ... + 2739.

It is an arithmetic number, because the mean of its divisors is an integer number (399087).

2^2118902 is an apocalyptic number.

2118902 is a deficient number, since it is larger than the sum of its proper divisors (1073794).

2118902 is a wasteful number, since it uses less digits than its factorization.

2118902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 2118902 is about 1455.6448742739. The cubic root of 2118902 is about 128.4409838664.

The spelling of 2118902 in words is "two million, one hundred eighteen thousand, nine hundred two".