3181242 has 32 divisors (see below), whose sum is σ = 6739200. Its totient is φ = 999488.

The previous prime is 3181237. The next prime is 3181249. The reversal of 3181242 is 2421813.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3181249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7984 + ... + 8372.

It is an arithmetic number, because the mean of its divisors is an integer number (210600).

Almost surely, 2^3181242 is an apocalyptic number.

3181242 is an abundant number, since it is smaller than the sum of its proper divisors (3557958).

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

3181242 is a wasteful number, since it uses less digits than its factorization.

3181242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470.

The product of its digits is 384, while the sum is 21.

The square root of 3181242 is about 1783.6036555244. The cubic root of 3181242 is about 147.0727577259.

The spelling of 3181242 in words is "three million, one hundred eighty-one thousand, two hundred forty-two".