2262991 has 4 divisors (see below), whose sum is σ = 2269432. Its totient is φ = 2256552.

The previous prime is 2262979. The next prime is 2263007. The reversal of 2262991 is 1992622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1992622 = 2 ⋅996311.

It is a cyclic number.

It is not a de Polignac number, because 2262991 - 2⁵ = 2262959 is a prime.

It is a super-2 number, since 2×2262991² = 10242256532162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2262971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2661 + ... + 3406.

It is an arithmetic number, because the mean of its divisors is an integer number (567358).

2^2262991 is an apocalyptic number.

2262991 is a deficient number, since it is larger than the sum of its proper divisors (6441).

2262991 is an equidigital number, since it uses as much as digits as its factorization.

2262991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6440.

The product of its digits is 3888, while the sum is 31.

The square root of 2262991 is about 1504.3241007177. The cubic root of 2262991 is about 131.2887788664.

The spelling of 2262991 in words is "two million, two hundred sixty-two thousand, nine hundred ninety-one".