3345240 has 64 divisors (see below), whose sum is σ = 10222560. Its totient is φ = 875520.

The previous prime is 3345233. The next prime is 3345247. The reversal of 3345240 is 425433.

It is a happy number.

3345240 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 1829²-1.

It is an interprime number because it is at equal distance from previous prime (3345233) and next prime (3345247).

It is a super-2 number, since 2×3345240² = 22381261315200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3345247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7092 + ... + 7548.

Almost surely, 2^3345240 is an apocalyptic number.

3345240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3345240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5111280).

3345240 is an abundant number, since it is smaller than the sum of its proper divisors (6877320).

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

3345240 is a wasteful number, since it uses less digits than its factorization.

3345240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 3345240 is about 1828.9997266266. Note that the first 3 decimals coincide. The cubic root of 3345240 is about 149.5578088386.

The spelling of 3345240 in words is "three million, three hundred forty-five thousand, two hundred forty".