2152260 has 72 divisors (see below), whose sum is σ = 7128576. Its totient is φ = 521280.

The previous prime is 2152247. The next prime is 2152291. The reversal of 2152260 is 622512.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1437 + ... + 2523.

It is an arithmetic number, because the mean of its divisors is an integer number (99008).

2^2152260 is an apocalyptic number.

2152260 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 2152260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3564288).

2152260 is an abundant number, since it is smaller than the sum of its proper divisors (4976316).

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

2152260 is a wasteful number, since it uses less digits than its factorization.

2152260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113 (or 1108 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2152260 is about 1467.0582810509. The cubic root of 2152260 is about 129.1114954575. Note that the first 3 decimals are identical.

Adding to 2152260 its reverse (622512), we get a palindrome (2774772).

The spelling of 2152260 in words is "two million, one hundred fifty-two thousand, two hundred sixty".