2261049 has 16 divisors (see below), whose sum is σ = 3499008. Its totient is φ = 1271952.

The previous prime is 2261041. The next prime is 2261053. The reversal of 2261049 is 9401622.

It is not a de Polignac number, because 2261049 - 2³ = 2261041 is a prime.

It is a super-2 number, since 2×2261049² = 10224685160802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2261041) 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 15 ways as a sum of consecutive naturals, for example, 604 + ... + 2210.

It is an arithmetic number, because the mean of its divisors is an integer number (218688).

2^2261049 is an apocalyptic number.

It is an amenable number.

2261049 is a deficient number, since it is larger than the sum of its proper divisors (1237959).

2261049 is a wasteful number, since it uses less digits than its factorization.

2261049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2261049 is about 1503.6784895715. The cubic root of 2261049 is about 131.2512126872.

It can be divided in two parts, 226 and 1049, that added together give a triangular number (1275 = T₅₀).

The spelling of 2261049 in words is "two million, two hundred sixty-one thousand, forty-nine".