544338981 has 16 divisors (see below), whose sum is σ = 808516800. Its totient is φ = 361952784.

The previous prime is 544338973. The next prime is 544339009. The reversal of 544338981 is 189833445.

It is not a de Polignac number, because 544338981 - 2³ = 544338973 is a prime.

It is a super-2 number, since 2×544338981² = 592609852472236722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544338901) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 15411 + ... + 36416.

It is an arithmetic number, because the mean of its divisors is an integer number (50532300).

Almost surely, 2^544338981 is an apocalyptic number.

It is an amenable number.

544338981 is a deficient number, since it is larger than the sum of its proper divisors (264177819).

544338981 is a wasteful number, since it uses less digits than its factorization.

544338981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52225 (or 52219 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 544338981 is about 23331.0732929285. The cubic root of 544338981 is about 816.5005444326.

The spelling of 544338981 in words is "five hundred forty-four million, three hundred thirty-eight thousand, nine hundred eighty-one".