2290869 has 64 divisors (see below), whose sum is σ = 4423680. Its totient is φ = 1140480.

The previous prime is 2290861. The next prime is 2290889. The reversal of 2290869 is 9680922.

It is not a de Polignac number, because 2290869 - 2³ = 2290861 is a prime.

It is a super-2 number, since 2×2290869² = 10496161550322, which contains 22 as substring.

2290869 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2290861) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 73884 + ... + 73914.

It is an arithmetic number, because the mean of its divisors is an integer number (69120).

2^2290869 is an apocalyptic number.

It is an amenable number.

2290869 is a deficient number, since it is larger than the sum of its proper divisors (2132811).

2290869 is a wasteful number, since it uses less digits than its factorization.

2290869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 2290869 is about 1513.5616934899. The cubic root of 2290869 is about 131.8256996973.

The spelling of 2290869 in words is "two million, two hundred ninety thousand, eight hundred sixty-nine".