544450399 has 4 divisors (see below), whose sum is σ = 546374536. Its totient is φ = 542526264.

The previous prime is 544450393. The next prime is 544450421. The reversal of 544450399 is 993054445.

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

It is a cyclic number.

It is not a de Polignac number, because 544450399 - 2⁷ = 544450271 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 (544450393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 961644 + ... + 962209.

It is an arithmetic number, because the mean of its divisors is an integer number (136593634).

Almost surely, 2^544450399 is an apocalyptic number.

544450399 is a deficient number, since it is larger than the sum of its proper divisors (1924137).

544450399 is a wasteful number, since it uses less digits than its factorization.

544450399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1924136.

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 544450399 is about 23333.4609306035. The cubic root of 544450399 is about 816.5562490913.

The spelling of 544450399 in words is "five hundred forty-four million, four hundred fifty thousand, three hundred ninety-nine".