3230820 has 96 divisors (see below), whose sum is σ = 10429440. Its totient is φ = 829440.

The previous prime is 3230813. The next prime is 3230831. The reversal of 3230820 is 280323.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3230793 and 3230802.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16644 + ... + 16836.

It is an arithmetic number, because the mean of its divisors is an integer number (108640).

Almost surely, 2^3230820 is an apocalyptic number.

3230820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3230820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5214720).

3230820 is an abundant number, since it is smaller than the sum of its proper divisors (7198620).

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

3230820 is a wasteful number, since it uses less digits than its factorization.

3230820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3230820 is about 1797.4481911866. The cubic root of 3230820 is about 147.8328402461.

The spelling of 3230820 in words is "three million, two hundred thirty thousand, eight hundred twenty".