2261085449 has 12 divisors (see below), whose sum is σ = 2744601984. Its totient is φ = 1853808264.

The previous prime is 2261085439. The next prime is 2261085457. The reversal of 2261085449 is 9445801622.

It is not a de Polignac number, because 2261085449 - 2⁸ = 2261085193 is a prime.

It is a super-2 number, since 2×2261085449² = 10225014815359063202, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2261085439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1002017 + ... + 1004270.

It is an arithmetic number, because the mean of its divisors is an integer number (228716832).

Almost surely, 2^2261085449 is an apocalyptic number.

It is an amenable number.

2261085449 is a deficient number, since it is larger than the sum of its proper divisors (483516535).

2261085449 is a wasteful number, since it uses less digits than its factorization.

2261085449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006324 (or 2006317 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 2261085449 is about 47550.8722212327. The cubic root of 2261085449 is about 1312.5191795716.

The spelling of 2261085449 in words is "two billion, two hundred sixty-one million, eighty-five thousand, four hundred forty-nine".