3618440 has 32 divisors (see below), whose sum is σ = 9305280. Its totient is φ = 1240512.

The previous prime is 3618421. The next prime is 3618443. The reversal of 3618440 is 448163.

3618440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3618443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6182 + ... + 6741.

It is an arithmetic number, because the mean of its divisors is an integer number (290790).

Almost surely, 2^3618440 is an apocalyptic number.

It is an amenable number.

3618440 is an abundant number, since it is smaller than the sum of its proper divisors (5686840).

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

3618440 is a wasteful number, since it uses less digits than its factorization.

3618440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12941 (or 12937 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 3618440 is about 1902.2197559693. The cubic root of 3618440 is about 153.5231214309.

The spelling of 3618440 in words is "three million, six hundred eighteen thousand, four hundred forty".