2260991 has 4 divisors (see below), whose sum is σ = 2264184. Its totient is φ = 2257800.

The previous prime is 2260967. The next prime is 2261009. The reversal of 2260991 is 1990622.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2260991 - 2¹⁰ = 2259967 is a prime.

It is a super-2 number, since 2×2260991² = 10224160604162, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2260961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5 + ... + 2126.

It is an arithmetic number, because the mean of its divisors is an integer number (566046).

2^2260991 is an apocalyptic number.

2260991 is a deficient number, since it is larger than the sum of its proper divisors (3193).

2260991 is a wasteful number, since it uses less digits than its factorization.

2260991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3192.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 2260991 is about 1503.6592034101. The cubic root of 2260991 is about 131.2500904005.

The spelling of 2260991 in words is "two million, two hundred sixty thousand, nine hundred ninety-one".