2633644 has 12 divisors (see below), whose sum is σ = 4963504. Its totient is φ = 1215504.

The previous prime is 2633641. The next prime is 2633651. The reversal of 2633644 is 4463362.

2633644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2²¹ + 6 + 3⁶ + 3¹² + 6³ + 4 + 4⁶ .

It is not an unprimeable number, because it can be changed into a prime (2633641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25272 + ... + 25375.

2^2633644 is an apocalyptic number.

It is an amenable number.

2633644 is a deficient number, since it is larger than the sum of its proper divisors (2329860).

2633644 is a wasteful number, since it uses less digits than its factorization.

2633644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50664 (or 50662 counting only the distinct ones).

The product of its digits is 10368, while the sum is 28.

The square root of 2633644 is about 1622.8505784575. The cubic root of 2633644 is about 138.0974596853.

It can be divided in two parts, 26 and 33644, that added together give a triangular number (33670 = T₂₅₉).

The spelling of 2633644 in words is "two million, six hundred thirty-three thousand, six hundred forty-four".