3123880 has 32 divisors (see below), whose sum is σ = 7273800. Its totient is φ = 1206016.

The previous prime is 3123863. The next prime is 3123881. The reversal of 3123880 is 883213.

It can be written as a sum of positive squares in 4 ways, for example, as 2414916 + 708964 = 1554^2 + 842^2 .

It is not an unprimeable number, because it can be changed into a prime (3123881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187 + ... + 2506.

Almost surely, 2^3123880 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 3123880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3636900).

3123880 is an abundant number, since it is smaller than the sum of its proper divisors (4149920).

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

3123880 is a wasteful number, since it uses less digits than its factorization.

3123880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733 (or 2729 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 3123880 is about 1767.4501407395. The cubic root of 3123880 is about 146.1834186910.

The spelling of 3123880 in words is "three million, one hundred twenty-three thousand, eight hundred eighty".