3138212 has 48 divisors (see below), whose sum is σ = 7160832. Its totient is φ = 1166880.

The previous prime is 3138209. The next prime is 3138221. The reversal of 3138212 is 2128313.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6863 + ... + 7305.

It is an arithmetic number, because the mean of its divisors is an integer number (149184).

Almost surely, 2^3138212 is an apocalyptic number.

It is a pronic number, being equal to 1771×1772.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3138212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3580416).

3138212 is an abundant number, since it is smaller than the sum of its proper divisors (4022620).

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

3138212 is a wasteful number, since it uses less digits than its factorization.

3138212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 486 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 3138212 is about 1771.4999294383. The cubic root of 3138212 is about 146.4066352114.

The spelling of 3138212 in words is "three million, one hundred thirty-eight thousand, two hundred twelve".