2489868 has 18 divisors (see below), whose sum is σ = 6293924. Its totient is φ = 829944.

The previous prime is 2489867. The next prime is 2489869. The reversal of 2489868 is 8689842.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2489867) and next prime (2489869).

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (2489867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34546 + ... + 34617.

2^2489868 is an apocalyptic number.

It is an amenable number.

2489868 is an abundant number, since it is smaller than the sum of its proper divisors (3804056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2489868 is a wasteful number, since it uses less digits than its factorization.

2489868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69173 (or 69168 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 2489868 is about 1577.9315574511. The cubic root of 2489868 is about 135.5372827152.

The spelling of 2489868 in words is "two million, four hundred eighty-nine thousand, eight hundred sixty-eight".