3403728 has 40 divisors (see below), whose sum is σ = 9771200. Its totient is φ = 1134432.

The previous prime is 3403711. The next prime is 3403733. The reversal of 3403728 is 8273043.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3508 + ... + 4371.

It is an arithmetic number, because the mean of its divisors is an integer number (244280).

Almost surely, 2^3403728 is an apocalyptic number.

It is an amenable number.

3403728 is an abundant number, since it is smaller than the sum of its proper divisors (6367472).

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

3403728 is a wasteful number, since it uses less digits than its factorization.

3403728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7896 (or 7884 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 3403728 is about 1844.9195104394. The cubic root of 3403728 is about 150.4243981092.

The spelling of 3403728 in words is "three million, four hundred three thousand, seven hundred twenty-eight".