2261581292 has 12 divisors (see below), whose sum is σ = 3971853816. Its totient is φ = 1126765920.

The previous prime is 2261581277. The next prime is 2261581319. The reversal of 2261581292 is 2921851622.

It is a super-2 number, since 2×2261581292² = 10229499880648778528, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1004918 + ... + 1007165.

It is an arithmetic number, because the mean of its divisors is an integer number (330987818).

Almost surely, 2^2261581292 is an apocalyptic number.

It is an amenable number.

2261581292 is a deficient number, since it is larger than the sum of its proper divisors (1710272524).

2261581292 is a wasteful number, since it uses less digits than its factorization.

2261581292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012368 (or 2012366 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 2261581292 is about 47556.0857514577. The cubic root of 2261581292 is about 1312.6151151883.

The spelling of 2261581292 in words is "two billion, two hundred sixty-one million, five hundred eighty-one thousand, two hundred ninety-two".