3445140 has 48 divisors (see below), whose sum is σ = 9801792. Its totient is φ = 903936.

The previous prime is 3445121. The next prime is 3445153. The reversal of 3445140 is 415443.

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, 3592 + ... + 4448.

It is an arithmetic number, because the mean of its divisors is an integer number (204204).

Almost surely, 2^3445140 is an apocalyptic number.

3445140 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 3445140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4900896).

3445140 is an abundant number, since it is smaller than the sum of its proper divisors (6356652).

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

3445140 is a wasteful number, since it uses less digits than its factorization.

3445140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936 (or 934 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 3445140 is about 1856.1088330160. The cubic root of 3445140 is about 151.0319947407.

The spelling of 3445140 in words is "three million, four hundred forty-five thousand, one hundred forty".