2115830 has 8 divisors (see below), whose sum is σ = 3808512. Its totient is φ = 846328.

The previous prime is 2115829. The next prime is 2115847. The reversal of 2115830 is 385112.

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

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, 105782 + ... + 105801.

It is an arithmetic number, because the mean of its divisors is an integer number (476064).

2^2115830 is an apocalyptic number.

2115830 is a deficient number, since it is larger than the sum of its proper divisors (1692682).

2115830 is a wasteful number, since it uses less digits than its factorization.

2115830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211590.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2115830 is about 1454.5892891122. The cubic root of 2115830 is about 128.3788822780.

It can be divided in two parts, 21 and 15830, that added together give a palindrome (15851).

The spelling of 2115830 in words is "two million, one hundred fifteen thousand, eight hundred thirty".