2126280 has 128 divisors (see below), whose sum is σ = 7257600. Its totient is φ = 494592.

The previous prime is 2126273. The next prime is 2126297. The reversal of 2126280 is 826212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45217 + ... + 45263.

It is an arithmetic number, because the mean of its divisors is an integer number (56700).

2^2126280 is an apocalyptic number.

2126280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2126280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3628800).

2126280 is an abundant number, since it is smaller than the sum of its proper divisors (5131320).

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

2126280 is a wasteful number, since it uses less digits than its factorization.

2126280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2126280 is about 1458.1769439955. The cubic root of 2126280 is about 128.5898880021.

The spelling of 2126280 in words is "two million, one hundred twenty-six thousand, two hundred eighty".