2121260 has 36 divisors (see below), whose sum is σ = 4744992. Its totient is φ = 796416.

The previous prime is 2121253. The next prime is 2121271. The reversal of 2121260 is 621212.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5597 + ... + 5963.

2^2121260 is an apocalyptic number.

2121260 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 2121260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2372496).

2121260 is an abundant number, since it is smaller than the sum of its proper divisors (2623732).

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

2121260 is a wasteful number, since it uses less digits than its factorization.

2121260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2121260 is about 1456.4545993611. The cubic root of 2121260 is about 128.4886109807.

Subtracting from 2121260 its product of nonzero digits (48), we obtain a palindrome (2121212).

Adding to 2121260 its reverse (621212), we get a palindrome (2742472).

The spelling of 2121260 in words is "two million, one hundred twenty-one thousand, two hundred sixty".