2649868 has 24 divisors (see below), whose sum is σ = 5045040. Its totient is φ = 1210560.

The previous prime is 2649863. The next prime is 2649869. The reversal of 2649868 is 8689462.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2649863) 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, 6618 + ... + 7006.

It is an arithmetic number, because the mean of its divisors is an integer number (210210).

2^2649868 is an apocalyptic number.

It is an amenable number.

2649868 is a deficient number, since it is larger than the sum of its proper divisors (2395172).

2649868 is a wasteful number, since it uses less digits than its factorization.

2649868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 535 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 2649868 is about 1627.8415156274. The cubic root of 2649868 is about 138.3804526504.

It can be divided in two parts, 26 and 49868, that added together give a palindrome (49894).

The spelling of 2649868 in words is "two million, six hundred forty-nine thousand, eight hundred sixty-eight".