2261530 has 16 divisors (see below), whose sum is σ = 4102560. Its totient is φ = 897552.

The previous prime is 2261509. The next prime is 2261531. The reversal of 2261530 is 351622.

It is a happy number.

It is a super-2 number, since 2×2261530² = 10229035881800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2261498 and 2261507.

It is not an unprimeable number, because it can be changed into a prime (2261531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577 + ... + 2203.

It is an arithmetic number, because the mean of its divisors is an integer number (256410).

2^2261530 is an apocalyptic number.

2261530 is a deficient number, since it is larger than the sum of its proper divisors (1841030).

2261530 is a wasteful number, since it uses less digits than its factorization.

2261530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2261530 is about 1503.8384221717. The cubic root of 2261530 is about 131.2605191871.

The spelling of 2261530 in words is "two million, two hundred sixty-one thousand, five hundred thirty".