3978190 has 16 divisors (see below), whose sum is σ = 7248528. Its totient is φ = 1571776.

The previous prime is 3978181. The next prime is 3978197. The reversal of 3978190 is 918793.

It is a super-4 number, since 4×3978190⁴ (a number of 28 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3978197) 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, 1567 + ... + 3226.

It is an arithmetic number, because the mean of its divisors is an integer number (453033).

Almost surely, 2^3978190 is an apocalyptic number.

3978190 is a deficient number, since it is larger than the sum of its proper divisors (3270338).

3978190 is a wasteful number, since it uses less digits than its factorization.

3978190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4883.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 3978190 is about 1994.5400472289. The cubic root of 3978190 is about 158.4510690943.

The spelling of 3978190 in words is "three million, nine hundred seventy-eight thousand, one hundred ninety".