3978132 has 12 divisors (see below), whose sum is σ = 9282336. Its totient is φ = 1326040.

The previous prime is 3978113. The next prime is 3978167. The reversal of 3978132 is 2318793.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 3978093 and 3978102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165744 + ... + 165767.

It is an arithmetic number, because the mean of its divisors is an integer number (773528).

Almost surely, 2^3978132 is an apocalyptic number.

It is an amenable number.

3978132 is an abundant number, since it is smaller than the sum of its proper divisors (5304204).

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

3978132 is a wasteful number, since it uses less digits than its factorization.

3978132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331518 (or 331516 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 3978132 is about 1994.5255074829. The cubic root of 3978132 is about 158.4502990450.

The spelling of 3978132 in words is "three million, nine hundred seventy-eight thousand, one hundred thirty-two".