2099812 has 24 divisors (see below), whose sum is σ = 4318272. Its totient is φ = 880800.

The previous prime is 2099809. The next prime is 2099821. The reversal of 2099812 is 2189902.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1264 + ... + 2407.

It is an arithmetic number, because the mean of its divisors is an integer number (179928).

2^2099812 is an apocalyptic number.

2099812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2099812 is an abundant number, since it is smaller than the sum of its proper divisors (2218460).

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

2099812 is a wasteful number, since it uses less digits than its factorization.

2099812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699 (or 3697 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 2099812 is about 1449.0728070045. The cubic root of 2099812 is about 128.0540949739.

The spelling of 2099812 in words is "two million, ninety-nine thousand, eight hundred twelve".