3938380 has 12 divisors (see below), whose sum is σ = 8270640. Its totient is φ = 1575344.

The previous prime is 3938371. The next prime is 3938381. The reversal of 3938380 is 838393.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3938381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98440 + ... + 98479.

It is an arithmetic number, because the mean of its divisors is an integer number (689220).

Almost surely, 2^3938380 is an apocalyptic number.

It is an amenable number.

3938380 is an abundant number, since it is smaller than the sum of its proper divisors (4332260).

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

3938380 is a wasteful number, since it uses less digits than its factorization.

3938380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196928 (or 196926 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 3938380 is about 1984.5352100681. The cubic root of 3938380 is about 157.9207528671.

The spelling of 3938380 in words is "three million, nine hundred thirty-eight thousand, three hundred eighty".