2290561 has 8 divisors (see below), whose sum is σ = 2819264. Its totient is φ = 1812240.

The previous prime is 2290543. The next prime is 2290571. The reversal of 2290561 is 1650922.

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

It is a cyclic number.

It is not a de Polignac number, because 2290561 - 2⁹ = 2290049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2290511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12495 + ... + 12676.

It is an arithmetic number, because the mean of its divisors is an integer number (352408).

2^2290561 is an apocalyptic number.

It is an amenable number.

2290561 is a deficient number, since it is larger than the sum of its proper divisors (528703).

2290561 is a wasteful number, since it uses less digits than its factorization.

2290561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25191.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 2290561 is about 1513.4599433087. The cubic root of 2290561 is about 131.8197915849.

The spelling of 2290561 in words is "two million, two hundred ninety thousand, five hundred sixty-one".