544188401 has 4 divisors (see below), whose sum is σ = 545487600. Its totient is φ = 542889204.

The previous prime is 544188313. The next prime is 544188409. The reversal of 544188401 is 104881445.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 544188401 - 2¹⁰ = 544187377 is a prime.

It is a super-2 number, since 2×544188401² = 592282031565873602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544188409) 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, 648971 + ... + 649808.

It is an arithmetic number, because the mean of its divisors is an integer number (136371900).

Almost surely, 2^544188401 is an apocalyptic number.

It is an amenable number.

544188401 is a deficient number, since it is larger than the sum of its proper divisors (1299199).

544188401 is a wasteful number, since it uses less digits than its factorization.

544188401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299198.

The product of its (nonzero) digits is 20480, while the sum is 35.

The square root of 544188401 is about 23327.8460428733. The cubic root of 544188401 is about 816.4252482201.

The spelling of 544188401 in words is "five hundred forty-four million, one hundred eighty-eight thousand, four hundred one".