2099142 has 16 divisors (see below), whose sum is σ = 4664880. Its totient is φ = 699696.

The previous prime is 2099129. The next prime is 2099147. The reversal of 2099142 is 2419902.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2099147) 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, 19383 + ... + 19490.

It is an arithmetic number, because the mean of its divisors is an integer number (291555).

2^2099142 is an apocalyptic number.

2099142 is an abundant number, since it is smaller than the sum of its proper divisors (2565738).

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

2099142 is a wasteful number, since it uses less digits than its factorization.

2099142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38884 (or 38878 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 2099142 is about 1448.8416062496. The cubic root of 2099142 is about 128.0404738544.

The spelling of 2099142 in words is "two million, ninety-nine thousand, one hundred forty-two".