544126989 has 16 divisors (see below), whose sum is σ = 834432128. Its totient is φ = 308947392.

The previous prime is 544126981. The next prime is 544127021. The reversal of 544126989 is 989621445.

It is not a de Polignac number, because 544126989 - 2³ = 544126981 is a prime.

It is a super-2 number, since 2×544126989² = 592148360316412242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544126981) 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, 79222 + ... + 85815.

It is an arithmetic number, because the mean of its divisors is an integer number (52152008).

Almost surely, 2^544126989 is an apocalyptic number.

It is an amenable number.

544126989 is a deficient number, since it is larger than the sum of its proper divisors (290305139).

544126989 is a wasteful number, since it uses less digits than its factorization.

544126989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165204.

The product of its digits is 622080, while the sum is 48.

The square root of 544126989 is about 23326.5297247576. The cubic root of 544126989 is about 816.3945356988.

The spelling of 544126989 in words is "five hundred forty-four million, one hundred twenty-six thousand, nine hundred eighty-nine".