2663144 has 32 divisors (see below), whose sum is σ = 5559840. Its totient is φ = 1185600.

The previous prime is 2663137. The next prime is 2663153. The reversal of 2663144 is 4413662.

2663144 = T₄₈₁ + T₄₈₂ + ... + T₅₀₂.

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, 4379 + ... + 4949.

It is an arithmetic number, because the mean of its divisors is an integer number (173745).

2^2663144 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 2663144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2779920).

2663144 is an abundant number, since it is smaller than the sum of its proper divisors (2896696).

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

2663144 is a wasteful number, since it uses less digits than its factorization.

2663144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 637 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 2663144 is about 1631.9142134316. The cubic root of 2663144 is about 138.6111659465.

The spelling of 2663144 in words is "two million, six hundred sixty-three thousand, one hundred forty-four".