2868890 has 16 divisors (see below), whose sum is σ = 5262408. Its totient is φ = 1125696.

The previous prime is 2868871. The next prime is 2868919. The reversal of 2868890 is 988682.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2211169 + 657721 = 1487^2 + 811^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2177 + ... + 3236.

2^2868890 is an apocalyptic number.

2868890 is a deficient number, since it is larger than the sum of its proper divisors (2393518).

2868890 is a wasteful number, since it uses less digits than its factorization.

2868890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5473.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 2868890 is about 1693.7797967859. The cubic root of 2868890 is about 142.0925469573.

The spelling of 2868890 in words is "two million, eight hundred sixty-eight thousand, eight hundred ninety".