2642844 has 24 divisors (see below), whose sum is σ = 6224400. Its totient is φ = 872704.

The previous prime is 2642839. The next prime is 2642863. The reversal of 2642844 is 4482462.

It is an Ulam number.

It is a nialpdrome in base 12.

It is a congruent number.

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, 382 + ... + 2330.

It is an arithmetic number, because the mean of its divisors is an integer number (259350).

2^2642844 is an apocalyptic number.

It is an amenable number.

2642844 is an abundant number, since it is smaller than the sum of its proper divisors (3581556).

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

2642844 is a wasteful number, since it uses less digits than its factorization.

2642844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069 (or 2067 counting only the distinct ones).

The product of its digits is 12288, while the sum is 30.

The square root of 2642844 is about 1625.6826258529. The cubic root of 2642844 is about 138.2580761926.

It can be divided in two parts, 2642 and 844, that added together give a triangular number (3486 = T₈₃).

The spelling of 2642844 in words is "two million, six hundred forty-two thousand, eight hundred forty-four".