2112404 has 24 divisors (see below), whose sum is σ = 4341120. Its totient is φ = 880416.

The previous prime is 2112353. The next prime is 2112413. The reversal of 2112404 is 4042112.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an Ulam number.

It is a congruent number.

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, 17 + ... + 2055.

It is an arithmetic number, because the mean of its divisors is an integer number (180880).

2^2112404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2170560).

2112404 is an abundant number, since it is smaller than the sum of its proper divisors (2228716).

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

2112404 is a wasteful number, since it uses less digits than its factorization.

2112404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087 (or 2085 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2112404 is about 1453.4111599957. The cubic root of 2112404 is about 128.3095535108.

Adding to 2112404 its reverse (4042112), we get a palindrome (6154516).

The spelling of 2112404 in words is "two million, one hundred twelve thousand, four hundred four".