3345872 has 20 divisors (see below), whose sum is σ = 6864516. Its totient is φ = 1574400.

The previous prime is 3345857. The next prime is 3345877. The reversal of 3345872 is 2785433.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1915456 + 1430416 = 1384^2 + 1196^2 .

It is a super-2 number, since 2×3345872² = 22389718880768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3345877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5879 + ... + 6422.

Almost surely, 2^3345872 is an apocalyptic number.

It is an amenable number.

3345872 is an abundant number, since it is smaller than the sum of its proper divisors (3518644).

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

3345872 is a wasteful number, since it uses less digits than its factorization.

3345872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12326 (or 12320 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 3345872 is about 1829.1724904995. The cubic root of 3345872 is about 149.5672266564.

The spelling of 3345872 in words is "three million, three hundred forty-five thousand, eight hundred seventy-two".