3644016 has 40 divisors (see below), whose sum is σ = 9530640. Its totient is φ = 1199616.

The previous prime is 3643973. The next prime is 3644021. The reversal of 3644016 is 6104463.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 3846 + ... + 4698.

It is an arithmetic number, because the mean of its divisors is an integer number (238266).

Almost surely, 2^3644016 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 3644016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4765320).

3644016 is an abundant number, since it is smaller than the sum of its proper divisors (5886624).

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

3644016 is a wasteful number, since it uses less digits than its factorization.

3644016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953 (or 947 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 3644016 is about 1908.9305906711. The cubic root of 3644016 is about 153.8839852604.

Adding to 3644016 its reverse (6104463), we get a palindrome (9748479).

The spelling of 3644016 in words is "three million, six hundred forty-four thousand, sixteen".