3908240 has 60 divisors (see below), whose sum is σ = 10580796. Its totient is φ = 1338624.

The previous prime is 3908239. The next prime is 3908287. The reversal of 3908240 is 428093.

It can be written as a sum of positive squares in 2 ways, for example, as 2458624 + 1449616 = 1568^2 + 1204^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3422 + ... + 4418.

Almost surely, 2^3908240 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 3908240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5290398).

3908240 is an abundant number, since it is smaller than the sum of its proper divisors (6672556).

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

3908240 is a wasteful number, since it uses less digits than its factorization.

3908240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024 (or 1011 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 3908240 is about 1976.9269081076. The cubic root of 3908240 is about 157.5168706208.

The spelling of 3908240 in words is "three million, nine hundred eight thousand, two hundred forty".