3139218 has 48 divisors (see below), whose sum is σ = 7319520. Its totient is φ = 969408.

The previous prime is 3139207. The next prime is 3139231. The reversal of 3139218 is 8129313.

It is a junction number, because it is equal to n+sod(n) for n = 3139191 and 3139200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22846 + ... + 22982.

It is an arithmetic number, because the mean of its divisors is an integer number (152490).

Almost surely, 2^3139218 is an apocalyptic number.

3139218 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3139218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3659760).

3139218 is an abundant number, since it is smaller than the sum of its proper divisors (4180302).

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

3139218 is a wasteful number, since it uses less digits than its factorization.

3139218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 228 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 3139218 is about 1771.7838468617. The cubic root of 3139218 is about 146.4222778066.

The spelling of 3139218 in words is "three million, one hundred thirty-nine thousand, two hundred eighteen".