2842644 has 48 divisors (see below), whose sum is σ = 7766528. Its totient is φ = 792288.

The previous prime is 2842643. The next prime is 2842649. The reversal of 2842644 is 4462482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2842643) 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, 3219 + ... + 4005.

2^2842644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2842644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3883264).

2842644 is an abundant number, since it is smaller than the sum of its proper divisors (4923884).

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

2842644 is a wasteful number, since it uses less digits than its factorization.

2842644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844 (or 842 counting only the distinct ones).

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

The square root of 2842644 is about 1686.0142348154. The cubic root of 2842644 is about 141.6579082628.

It can be divided in two parts, 2842 and 644, that added together give a triangular number (3486 = T₈₃).

The spelling of 2842644 in words is "two million, eight hundred forty-two thousand, six hundred forty-four".