2112990 has 64 divisors (see below), whose sum is σ = 5840640. Its totient is φ = 483840.

The previous prime is 2112989. The next prime is 2112997. The reversal of 2112990 is 992112.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2112990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6102 + ... + 6438.

It is an arithmetic number, because the mean of its divisors is an integer number (91260).

2^2112990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2920320).

2112990 is an abundant number, since it is smaller than the sum of its proper divisors (3727650).

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

2112990 is a wasteful number, since it uses less digits than its factorization.

2112990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 2112990 is about 1453.6127407257. The cubic root of 2112990 is about 128.3214171579.

The spelling of 2112990 in words is "two million, one hundred twelve thousand, nine hundred ninety".