3163820 has 48 divisors (see below), whose sum is σ = 7384608. Its totient is φ = 1128960.

The previous prime is 3163801. The next prime is 3163837. The reversal of 3163820 is 283613.

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, 15962 + ... + 16158.

It is an arithmetic number, because the mean of its divisors is an integer number (153846).

Almost surely, 2^3163820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3163820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3692304).

3163820 is an abundant number, since it is smaller than the sum of its proper divisors (4220788).

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

3163820 is a wasteful number, since it uses less digits than its factorization.

3163820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 3163820 is about 1778.7130178868. The cubic root of 3163820 is about 146.8037859081.

The spelling of 3163820 in words is "three million, one hundred sixty-three thousand, eight hundred twenty".