3181444 has 12 divisors (see below), whose sum is σ = 6362944. Its totient is φ = 1363464.

The previous prime is 3181421. The next prime is 3181447. The reversal of 3181444 is 4441813.

3181444 is an admirable number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3181447) 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, 56784 + ... + 56839.

Almost surely, 2^3181444 is an apocalyptic number.

It is an amenable number.

3181444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3181444 is a wasteful number, since it uses less digits than its factorization.

3181444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113634 (or 113632 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 3181444 is about 1783.6602815559. The cubic root of 3181444 is about 147.0758705634.

The spelling of 3181444 in words is "three million, one hundred eighty-one thousand, four hundred forty-four".