2291566 has 8 divisors (see below), whose sum is σ = 3639600. Its totient is φ = 1078368.

The previous prime is 2291563. The next prime is 2291567. The reversal of 2291566 is 6651922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291563) 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, 33666 + ... + 33733.

It is an arithmetic number, because the mean of its divisors is an integer number (454950).

2^2291566 is an apocalyptic number.

2291566 is a deficient number, since it is larger than the sum of its proper divisors (1348034).

2291566 is a wasteful number, since it uses less digits than its factorization.

2291566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67418.

The product of its digits is 6480, while the sum is 31.

The square root of 2291566 is about 1513.7919275779. The cubic root of 2291566 is about 131.8390677243.

The spelling of 2291566 in words is "two million, two hundred ninety-one thousand, five hundred sixty-six".