3981348 has 108 divisors (see below), whose sum is σ = 12220572. Its totient is φ = 1088640.

The previous prime is 3981343. The next prime is 3981389. The reversal of 3981348 is 8431893.

It can be written as a sum of positive squares in 2 ways, for example, as 1695204 + 2286144 = 1302^2 + 1512^2 .

It is a super-2 number, since 2×3981348² = 31702263794208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3981343) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 65238 + ... + 65298.

Almost surely, 2^3981348 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 3981348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6110286).

3981348 is an abundant number, since it is smaller than the sum of its proper divisors (8239224).

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

3981348 is a wasteful number, since it uses less digits than its factorization.

3981348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 110 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 3981348 is about 1995.3315513969. The cubic root of 3981348 is about 158.4929856549.

The spelling of 3981348 in words is "three million, nine hundred eighty-one thousand, three hundred forty-eight".