3305140 has 24 divisors (see below), whose sum is σ = 7349832. Its totient is φ = 1244160.

The previous prime is 3305119. The next prime is 3305147. The reversal of 3305140 is 415033.

It can be written as a sum of positive squares in 4 ways, for example, as 79524 + 3225616 = 282^2 + 1796^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3305147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4521 + ... + 5200.

It is an arithmetic number, because the mean of its divisors is an integer number (306243).

Almost surely, 2^3305140 is an apocalyptic number.

It is an amenable number.

3305140 is an abundant number, since it is smaller than the sum of its proper divisors (4044692).

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

3305140 is a wasteful number, since it uses less digits than its factorization.

3305140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9747 (or 9745 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 3305140 is about 1818.0044004347. The cubic root of 3305140 is about 148.9578127790.

Subtracting from 3305140 its sum of digits (16), we obtain a square (3305124 = 1818²).

The spelling of 3305140 in words is "three million, three hundred five thousand, one hundred forty".