3881500 has 48 divisors (see below), whose sum is σ = 9696960. Its totient is φ = 1329600.

The previous prime is 3881467. The next prime is 3881509. The reversal of 3881500 is 51883.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3881509) 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, 2946 + ... + 4054.

It is an arithmetic number, because the mean of its divisors is an integer number (202020).

Almost surely, 2^3881500 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 3881500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4848480).

3881500 is an abundant number, since it is smaller than the sum of its proper divisors (5815460).

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

3881500 is a wasteful number, since it uses less digits than its factorization.

3881500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 3881500 is about 1970.1522783785. The cubic root of 3881500 is about 157.1568071048.

The spelling of 3881500 in words is "three million, eight hundred eighty-one thousand, five hundred".