3978148 has 24 divisors (see below), whose sum is σ = 7225344. Its totient is φ = 1915200.

The previous prime is 3978113. The next prime is 3978167. The reversal of 3978148 is 8418793.

It is a super-3 number, since 3×3978148³ (a number of 21 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3978148.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20733 + ... + 20923.

It is an arithmetic number, because the mean of its divisors is an integer number (301056).

Almost surely, 2^3978148 is an apocalyptic number.

It is an amenable number.

3978148 is a deficient number, since it is larger than the sum of its proper divisors (3247196).

3978148 is a wasteful number, since it uses less digits than its factorization.

3978148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 361 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 3978148 is about 1994.5295184579. The cubic root of 3978148 is about 158.4505114731.

It can be divided in two parts, 39 and 78148, that added together give a palindrome (78187).

The spelling of 3978148 in words is "three million, nine hundred seventy-eight thousand, one hundred forty-eight".