3851980 has 24 divisors (see below), whose sum is σ = 8825040. Its totient is φ = 1400640.

The previous prime is 3851977. The next prime is 3851989. The reversal of 3851980 is 891583.

It is not an unprimeable number, because it can be changed into a prime (3851989) 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, 8535 + ... + 8974.

It is an arithmetic number, because the mean of its divisors is an integer number (367710).

Almost surely, 2^3851980 is an apocalyptic number.

It is an amenable number.

3851980 is an abundant number, since it is smaller than the sum of its proper divisors (4973060).

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

3851980 is a wasteful number, since it uses less digits than its factorization.

3851980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17529 (or 17527 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 3851980 is about 1962.6461729003. The cubic root of 3851980 is about 156.7573842087.

The spelling of 3851980 in words is "three million, eight hundred fifty-one thousand, nine hundred eighty".