3628240 has 160 divisors (see below), whose sum is σ = 11427840. Its totient is φ = 1036800.

The previous prime is 3628201. The next prime is 3628243. The reversal of 3628240 is 428263.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3628243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117025 + ... + 117055.

It is an arithmetic number, because the mean of its divisors is an integer number (71424).

Almost surely, 2^3628240 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 3628240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5713920).

3628240 is an abundant number, since it is smaller than the sum of its proper divisors (7799600).

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

3628240 is a wasteful number, since it uses less digits than its factorization.

3628240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 3628240 is about 1904.7939521114. The cubic root of 3628240 is about 153.6615945822.

The spelling of 3628240 in words is "three million, six hundred twenty-eight thousand, two hundred forty".