3424728 has 16 divisors (see below), whose sum is σ = 8561880. Its totient is φ = 1141568.

The previous prime is 3424727. The next prime is 3424739. The reversal of 3424728 is 8274243.

It is a d-powerful number, because it can be written as 3² + 4⁹ + 2⁵ + 4¹⁰ + 7⁵ + 2²¹ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 3424695 and 3424704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3424727) 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, 71325 + ... + 71372.

Almost surely, 2^3424728 is an apocalyptic number.

It is an amenable number.

3424728 is an abundant number, since it is smaller than the sum of its proper divisors (5137152).

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

3424728 is a wasteful number, since it uses less digits than its factorization.

3424728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142706 (or 142702 counting only the distinct ones).

The product of its digits is 10752, while the sum is 30.

The square root of 3424728 is about 1850.6020641942. The cubic root of 3424728 is about 150.7331221530.

The spelling of 3424728 in words is "three million, four hundred twenty-four thousand, seven hundred twenty-eight".