2290761 has 24 divisors (see below), whose sum is σ = 3747744. Its totient is φ = 1386720.

The previous prime is 2290751. The next prime is 2290789. The reversal of 2290761 is 1670922.

It is not a de Polignac number, because 2290761 - 2¹⁸ = 2028617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2290721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2245 + ... + 3101.

It is an arithmetic number, because the mean of its divisors is an integer number (156156).

2^2290761 is an apocalyptic number.

It is an amenable number.

2290761 is a deficient number, since it is larger than the sum of its proper divisors (1456983).

2290761 is an equidigital number, since it uses as much as digits as its factorization.

2290761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 871 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 2290761 is about 1513.5260156337. The cubic root of 2290761 is about 131.8236280818.

The spelling of 2290761 in words is "two million, two hundred ninety thousand, seven hundred sixty-one".