3639152 has 80 divisors (see below), whose sum is σ = 8570880. Its totient is φ = 1478400.

The previous prime is 3639151. The next prime is 3639157. The reversal of 3639152 is 2519363.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3639151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117377 + ... + 117407.

It is an arithmetic number, because the mean of its divisors is an integer number (107136).

Almost surely, 2^3639152 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 3639152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4285440).

3639152 is an abundant number, since it is smaller than the sum of its proper divisors (4931728).

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

3639152 is a wasteful number, since it uses less digits than its factorization.

3639152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 96 counting only the distinct ones).

The product of its digits is 4860, while the sum is 29.

The square root of 3639152 is about 1907.6561535036. The cubic root of 3639152 is about 153.8154871183.

The spelling of 3639152 in words is "three million, six hundred thirty-nine thousand, one hundred fifty-two".