6181444 has 6 divisors (see below), whose sum is σ = 10817534. Its totient is φ = 3090720.

The previous prime is 6181433. The next prime is 6181451. The reversal of 6181444 is 4441816.

It can be written as a sum of positive squares in only one way, i.e., 4326400 + 1855044 = 2080^2 + 1362^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 772677 + ... + 772684.

Almost surely, 2^6181444 is an apocalyptic number.

It is an amenable number.

6181444 is a deficient number, since it is larger than the sum of its proper divisors (4636090).

6181444 is a wasteful number, since it uses less digits than its factorization.

6181444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545365 (or 1545363 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 6181444 is about 2486.2509929611. The cubic root of 6181444 is about 183.5255973814.

The spelling of 6181444 in words is "six million, one hundred eighty-one thousand, four hundred forty-four".