3428730 has 96 divisors (see below), whose sum is σ = 9906624. Its totient is φ = 850176.

The previous prime is 3428717. The next prime is 3428743. The reversal of 3428730 is 378243.

3428730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3428717) and next prime (3428743).

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

It is a junction number, because it is equal to n+sod(n) for n = 3428694 and 3428703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41269 + ... + 41351.

It is an arithmetic number, because the mean of its divisors is an integer number (103194).

Almost surely, 2^3428730 is an apocalyptic number.

3428730 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 3428730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4953312).

3428730 is an abundant number, since it is smaller than the sum of its proper divisors (6477894).

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

3428730 is a wasteful number, since it uses less digits than its factorization.

3428730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 110 counting only the distinct ones).

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

The square root of 3428730 is about 1851.6830182296. The cubic root of 3428730 is about 150.7918128613.

The spelling of 3428730 in words is "three million, four hundred twenty-eight thousand, seven hundred thirty".