3845980 has 48 divisors (see below), whose sum is σ = 8820000. Its totient is φ = 1403136.

The previous prime is 3845977. The next prime is 3845981. The reversal of 3845980 is 895483.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3845981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10846 + ... + 11194.

It is an arithmetic number, because the mean of its divisors is an integer number (183750).

Almost surely, 2^3845980 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 3845980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4410000).

3845980 is an abundant number, since it is smaller than the sum of its proper divisors (4974020).

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

3845980 is a wasteful number, since it uses less digits than its factorization.

3845980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 3845980 is about 1961.1170286344. The cubic root of 3845980 is about 156.6759513636.

The spelling of 3845980 in words is "three million, eight hundred forty-five thousand, nine hundred eighty".