539925444 has 18 divisors (see below), whose sum is σ = 1364811630. Its totient is φ = 179975136.

The previous prime is 539925443. The next prime is 539925467. The reversal of 539925444 is 444529935.

539925444 is a `hidden beast` number, since 5 + 399 + 254 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 461390400 + 78535044 = 21480^2 + 8862^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 539925444.

It is not an unprimeable number, because it can be changed into a prime (539925443) 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 5 ways as a sum of consecutive naturals, for example, 7498929 + ... + 7499000.

Almost surely, 2^539925444 is an apocalyptic number.

It is an amenable number.

539925444 is an abundant number, since it is smaller than the sum of its proper divisors (824886186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

539925444 is a wasteful number, since it uses less digits than its factorization.

539925444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14997939 (or 14997934 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 539925444 is about 23236.2958321674. The cubic root of 539925444 is about 814.2878061943.

The spelling of 539925444 in words is "five hundred thirty-nine million, nine hundred twenty-five thousand, four hundred forty-four".