3408140 has 48 divisors (see below), whose sum is σ = 7741440. Its totient is φ = 1256640.

The previous prime is 3408133. The next prime is 3408161. The reversal of 3408140 is 418043.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14141 + ... + 14379.

It is an arithmetic number, because the mean of its divisors is an integer number (161280).

Almost surely, 2^3408140 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 3408140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3870720).

3408140 is an abundant number, since it is smaller than the sum of its proper divisors (4333300).

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

3408140 is a wasteful number, since it uses less digits than its factorization.

3408140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 3408140 is about 1846.1148393315. The cubic root of 3408140 is about 150.4893647080.

The spelling of 3408140 in words is "three million, four hundred eight thousand, one hundred forty".