2112280 has 16 divisors (see below), whose sum is σ = 4752720. Its totient is φ = 844896.

The previous prime is 2112263. The next prime is 2112307. The reversal of 2112280 is 822112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26364 + ... + 26443.

It is an arithmetic number, because the mean of its divisors is an integer number (297045).

2^2112280 is an apocalyptic number.

2112280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112280 is an abundant number, since it is smaller than the sum of its proper divisors (2640440).

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

2112280 is a wasteful number, since it uses less digits than its factorization.

2112280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52818 (or 52814 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2112280 is about 1453.3685011036. The cubic root of 2112280 is about 128.3070428332.

Adding to 2112280 its reverse (822112), we get a palindrome (2934392).

The spelling of 2112280 in words is "two million, one hundred twelve thousand, two hundred eighty".