2251170 has 24 divisors (see below), whose sum is σ = 5853276. Its totient is φ = 600288.

The previous prime is 2251169. The next prime is 2251199. The reversal of 2251170 is 711522.

It can be written as a sum of positive squares in 2 ways, for example, as 2082249 + 168921 = 1443^2 + 411^2 .

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

It is an Ulam number.

It is a Curzon number.

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, 12417 + ... + 12596.

2^2251170 is an apocalyptic number.

2251170 is an abundant number, since it is smaller than the sum of its proper divisors (3602106).

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

2251170 is a wasteful number, since it uses less digits than its factorization.

2251170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25026 (or 25023 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 2251170 is about 1500.3899493132. The cubic root of 2251170 is about 131.0597788667.

Adding to 2251170 its reverse (711522), we get a palindrome (2962692).

The spelling of 2251170 in words is "two million, two hundred fifty-one thousand, one hundred seventy".