3089820 has 48 divisors (see below), whose sum is σ = 9031680. Its totient is φ = 787776.

The previous prime is 3089803. The next prime is 3089857. The reversal of 3089820 is 289803.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261 + ... + 2499.

It is an arithmetic number, because the mean of its divisors is an integer number (188160).

Almost surely, 2^3089820 is an apocalyptic number.

3089820 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 3089820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4515840).

3089820 is an abundant number, since it is smaller than the sum of its proper divisors (5941860).

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

3089820 is a wasteful number, since it uses less digits than its factorization.

3089820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274 (or 2272 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 3089820 is about 1757.7883831679. The cubic root of 3089820 is about 145.6501915072.

The spelling of 3089820 in words is "three million, eighty-nine thousand, eight hundred twenty".