3259644 has 12 divisors (see below), whose sum is σ = 7605864. Its totient is φ = 1086544.

The previous prime is 3259643. The next prime is 3259649. The reversal of 3259644 is 4469523.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3259643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135807 + ... + 135830.

It is an arithmetic number, because the mean of its divisors is an integer number (633822).

Almost surely, 2^3259644 is an apocalyptic number.

It is an amenable number.

3259644 is an abundant number, since it is smaller than the sum of its proper divisors (4346220).

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

3259644 is a wasteful number, since it uses less digits than its factorization.

3259644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271644 (or 271642 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 3259644 is about 1805.4484207531. The cubic root of 3259644 is about 148.2711731582.

It can be divided in two parts, 32596 and 44, that added together give a triangular number (32640 = T₂₅₅).

The spelling of 3259644 in words is "three million, two hundred fifty-nine thousand, six hundred forty-four".