3609144 has 192 divisors, whose sum is σ = 13132800. Its totient is φ = 907200.

The previous prime is 3609103. The next prime is 3609161. The reversal of 3609144 is 4419063.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116409 + ... + 116439.

It is an arithmetic number, because the mean of its divisors is an integer number (68400).

Almost surely, 2^3609144 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 3609144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6566400).

3609144 is an abundant number, since it is smaller than the sum of its proper divisors (9523656).

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

3609144 is a wasteful number, since it uses less digits than its factorization.

3609144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 3609144 is about 1899.7747234870. The cubic root of 3609144 is about 153.3915384991.

The spelling of 3609144 in words is "three million, six hundred nine thousand, one hundred forty-four".