3139378 has 8 divisors (see below), whose sum is σ = 5137200. Its totient is φ = 1426980.

The previous prime is 3139369. The next prime is 3139379. The reversal of 3139378 is 8739313.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3139379) 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, 71328 + ... + 71371.

It is an arithmetic number, because the mean of its divisors is an integer number (642150).

Almost surely, 2^3139378 is an apocalyptic number.

3139378 is a deficient number, since it is larger than the sum of its proper divisors (1997822).

3139378 is a wasteful number, since it uses less digits than its factorization.

3139378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142712.

The product of its digits is 13608, while the sum is 34.

The square root of 3139378 is about 1771.8289985210. The cubic root of 3139378 is about 146.4247653865.

The spelling of 3139378 in words is "three million, one hundred thirty-nine thousand, three hundred seventy-eight".