544668549 has 8 divisors (see below), whose sum is σ = 736173312. Its totient is φ = 358138080.

The previous prime is 544668547. The next prime is 544668557. The reversal of 544668549 is 945866445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 544668549 - 2¹ = 544668547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544668547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1243317 + ... + 1243754.

It is an arithmetic number, because the mean of its divisors is an integer number (92021664).

Almost surely, 2^544668549 is an apocalyptic number.

It is an amenable number.

544668549 is a deficient number, since it is larger than the sum of its proper divisors (191504763).

544668549 is a wasteful number, since it uses less digits than its factorization.

544668549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487147.

The product of its digits is 4147200, while the sum is 51.

The square root of 544668549 is about 23338.1350797359. The cubic root of 544668549 is about 816.6652935883.

The spelling of 544668549 in words is "five hundred forty-four million, six hundred sixty-eight thousand, five hundred forty-nine".