3428120 has 16 divisors (see below), whose sum is σ = 7713360. Its totient is φ = 1371232.

The previous prime is 3428099. The next prime is 3428137. The reversal of 3428120 is 218243.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3428092 and 3428101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42812 + ... + 42891.

It is an arithmetic number, because the mean of its divisors is an integer number (482085).

Almost surely, 2^3428120 is an apocalyptic number.

It is an amenable number.

3428120 is an abundant number, since it is smaller than the sum of its proper divisors (4285240).

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

3428120 is a wasteful number, since it uses less digits than its factorization.

3428120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85714 (or 85710 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 3428120 is about 1851.5182958858. The cubic root of 3428120 is about 150.7828699523.

The spelling of 3428120 in words is "three million, four hundred twenty-eight thousand, one hundred twenty".