2251730 has 16 divisors (see below), whose sum is σ = 4365144. Its totient is φ = 831360.

The previous prime is 2251729. The next prime is 2251741. The reversal of 2251730 is 371522.

2251730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1151329 + 1100401 = 1073^2 + 1049^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8531 + ... + 8790.

2^2251730 is an apocalyptic number.

2251730 is a deficient number, since it is larger than the sum of its proper divisors (2113414).

2251730 is a wasteful number, since it uses less digits than its factorization.

2251730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17341.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 2251730 is about 1500.5765558611. The cubic root of 2251730 is about 131.0706454222.

The spelling of 2251730 in words is "two million, two hundred fifty-one thousand, seven hundred thirty".