3091980 has 48 divisors (see below), whose sum is σ = 8961120. Its totient is φ = 795648.

The previous prime is 3091973. The next prime is 3091987. The reversal of 3091980 is 891903.

It is a happy number.

3091980 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 (3091973) and next prime (3091987).

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

It is not an unprimeable number, because it can be changed into a prime (3091987) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 852 + ... + 2628.

It is an arithmetic number, because the mean of its divisors is an integer number (186690).

Almost surely, 2^3091980 is an apocalyptic number.

3091980 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 3091980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4480560).

3091980 is an abundant number, since it is smaller than the sum of its proper divisors (5869140).

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

3091980 is a wasteful number, since it uses less digits than its factorization.

3091980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818 (or 1816 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 3091980 is about 1758.4026842564. The cubic root of 3091980 is about 145.6841234873.

The spelling of 3091980 in words is "three million, ninety-one thousand, nine hundred eighty".