2113828 has 12 divisors (see below), whose sum is σ = 3818752. Its totient is φ = 1022760.

The previous prime is 2113823. The next prime is 2113843. The reversal of 2113828 is 8283112.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2113823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8400 + ... + 8647.

2^2113828 is an apocalyptic number.

It is an amenable number.

2113828 is a deficient number, since it is larger than the sum of its proper divisors (1704924).

2113828 is a wasteful number, since it uses less digits than its factorization.

2113828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17082 (or 17080 counting only the distinct ones).

The product of its digits is 768, while the sum is 25.

The square root of 2113828 is about 1453.9009594880. The cubic root of 2113828 is about 128.3383787675.

Adding to 2113828 its product of digits (768), we get a triangular number (2114596 = T₂₀₅₆).

It can be divided in two parts, 211 and 3828, that multiplied together give a palindrome (807708).

The spelling of 2113828 in words is "two million, one hundred thirteen thousand, eight hundred twenty-eight".