2631944 has 32 divisors (see below), whose sum is σ = 5776320. Its totient is φ = 1100736.

The previous prime is 2631929. The next prime is 2631947. The reversal of 2631944 is 4491362.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2631947) 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, 1862 + ... + 2954.

It is an arithmetic number, because the mean of its divisors is an integer number (180510).

2^2631944 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 2631944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2888160).

2631944 is an abundant number, since it is smaller than the sum of its proper divisors (3144376).

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

2631944 is a wasteful number, since it uses less digits than its factorization.

2631944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149 (or 1145 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 2631944 is about 1622.3267241835. The cubic root of 2631944 is about 138.0677396203.

The spelling of 2631944 in words is "two million, six hundred thirty-one thousand, nine hundred forty-four".