3139449 has 8 divisors (see below), whose sum is σ = 4257120. Its totient is φ = 2057376.

The previous prime is 3139447. The next prime is 3139471. The reversal of 3139449 is 9449313.

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

It is not a de Polignac number, because 3139449 - 2¹ = 3139447 is a prime.

It is a super-2 number, since 2×3139449² = 19712280047202, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3139447) 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, 8692 + ... + 9045.

It is an arithmetic number, because the mean of its divisors is an integer number (532140).

Almost surely, 2^3139449 is an apocalyptic number.

It is an amenable number.

3139449 is a deficient number, since it is larger than the sum of its proper divisors (1117671).

3139449 is a wasteful number, since it uses less digits than its factorization.

3139449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17799.

The product of its digits is 11664, while the sum is 33.

The square root of 3139449 is about 1771.8490342013. The cubic root of 3139449 is about 146.4258692230.

The spelling of 3139449 in words is "three million, one hundred thirty-nine thousand, four hundred forty-nine".