2639841 has 16 divisors (see below), whose sum is σ = 3835200. Its totient is φ = 1608768.

The previous prime is 2639827. The next prime is 2639863. The reversal of 2639841 is 1489362.

It is not a de Polignac number, because 2639841 - 2⁵ = 2639809 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 855 + ... + 2451.

It is an arithmetic number, because the mean of its divisors is an integer number (239700).

2^2639841 is an apocalyptic number.

It is an amenable number.

2639841 is a deficient number, since it is larger than the sum of its proper divisors (1195359).

2639841 is a wasteful number, since it uses less digits than its factorization.

2639841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648.

The product of its digits is 10368, while the sum is 33.

The square root of 2639841 is about 1624.7587513228. The cubic root of 2639841 is about 138.2056899049.

The spelling of 2639841 in words is "two million, six hundred thirty-nine thousand, eight hundred forty-one".