3489750 has 128 divisors (see below), whose sum is σ = 10782720. Its totient is φ = 828000.

The previous prime is 3489713. The next prime is 3489757. The reversal of 3489750 is 579843.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3489757) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 74227 + ... + 74273.

It is an arithmetic number, because the mean of its divisors is an integer number (84240).

Almost surely, 2^3489750 is an apocalyptic number.

3489750 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3489750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5391360).

3489750 is an abundant number, since it is smaller than the sum of its proper divisors (7292970).

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

3489750 is a wasteful number, since it uses less digits than its factorization.

3489750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 3489750 is about 1868.0872570627. The cubic root of 3489750 is about 151.6810892107.

The spelling of 3489750 in words is "three million, four hundred eighty-nine thousand, seven hundred fifty".