3116820 has 96 divisors (see below), whose sum is σ = 10273536. Its totient is φ = 691200.

The previous prime is 3116819. The next prime is 3116837. The reversal of 3116820 is 286113.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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, 17130 + ... + 17310.

It is an arithmetic number, because the mean of its divisors is an integer number (107016).

Almost surely, 2^3116820 is an apocalyptic number.

3116820 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 3116820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5136768).

3116820 is an abundant number, since it is smaller than the sum of its proper divisors (7156716).

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

3116820 is a wasteful number, since it uses less digits than its factorization.

3116820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 3116820 is about 1765.4517835387. The cubic root of 3116820 is about 146.0732102965.

The spelling of 3116820 in words is "three million, one hundred sixteen thousand, eight hundred twenty".