544454399 has 4 divisors (see below), whose sum is σ = 544790664. Its totient is φ = 544118136.

The previous prime is 544454387. The next prime is 544454411. The reversal of 544454399 is 993454445.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (544454387) and next prime (544454411).

It is a cyclic number.

It is not a de Polignac number, because 544454399 - 2⁸ = 544454143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544154399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165692 + ... + 168945.

It is an arithmetic number, because the mean of its divisors is an integer number (136197666).

Almost surely, 2^544454399 is an apocalyptic number.

544454399 is a deficient number, since it is larger than the sum of its proper divisors (336265).

544454399 is a wasteful number, since it uses less digits than its factorization.

544454399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336264.

The product of its digits is 1555200, while the sum is 47.

The square root of 544454399 is about 23333.5466442631. The cubic root of 544454399 is about 816.5582487941.

The spelling of 544454399 in words is "five hundred forty-four million, four hundred fifty-four thousand, three hundred ninety-nine".