3878438 has 8 divisors (see below), whose sum is σ = 5871360. Its totient is φ = 1921320.

The previous prime is 3878423. The next prime is 3878447. The reversal of 3878438 is 8348783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3878395 and 3878404.

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, 8678 + ... + 9113.

It is an arithmetic number, because the mean of its divisors is an integer number (733920).

Almost surely, 2^3878438 is an apocalyptic number.

3878438 is a deficient number, since it is larger than the sum of its proper divisors (1992922).

3878438 is a wasteful number, since it uses less digits than its factorization.

3878438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17902.

The product of its digits is 129024, while the sum is 41.

The square root of 3878438 is about 1969.3750277690. The cubic root of 3878438 is about 157.1154707883.

The spelling of 3878438 in words is "three million, eight hundred seventy-eight thousand, four hundred thirty-eight".