538719444 has 24 divisors (see below), whose sum is σ = 1396680320. Its totient is φ = 179573112.

The previous prime is 538719439. The next prime is 538719449. The reversal of 538719444 is 444917835.

538719444 is a `hidden beast` number, since 538 + 71 + 9 + 4 + 44 = 666.

It is an interprime number because it is at equal distance from previous prime (538719439) and next prime (538719449).

It is a self number, because there is not a number n which added to its sum of digits gives 538719444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538719449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2493964 + ... + 2494179.

Almost surely, 2^538719444 is an apocalyptic number.

538719444 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

538719444 is an abundant number, since it is smaller than the sum of its proper divisors (857960876).

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

538719444 is a wasteful number, since it uses less digits than its factorization.

538719444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4988156 (or 4988148 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 538719444 is about 23210.3305448242. The cubic root of 538719444 is about 813.6810784925.

The spelling of 538719444 in words is "five hundred thirty-eight million, seven hundred nineteen thousand, four hundred forty-four".