3988120 has 32 divisors (see below), whose sum is σ = 9039600. Its totient is φ = 1583488.

The previous prime is 3988097. The next prime is 3988129. The reversal of 3988120 is 218893.

It is a super-2 number, since 2×3988120² = 31810202268800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3988129) 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, 6882 + ... + 7438.

Almost surely, 2^3988120 is an apocalyptic number.

It is an amenable number.

3988120 is an abundant number, since it is smaller than the sum of its proper divisors (5051480).

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

3988120 is a wasteful number, since it uses less digits than its factorization.

3988120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 743 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 3988120 is about 1997.0277914941. The cubic root of 3988120 is about 158.5827966543.

The spelling of 3988120 in words is "three million, nine hundred eighty-eight thousand, one hundred twenty".