519744994 has 8 divisors (see below), whose sum is σ = 800688348. Its totient is φ = 252848880.

The previous prime is 519744991. The next prime is 519744997. The reversal of 519744994 is 499447915.

It is an interprime number because it is at equal distance from previous prime (519744991) and next prime (519744997).

It can be written as a sum of positive squares in 2 ways, for example, as 374229025 + 145515969 = 19345^2 + 12063^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×519744994³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (519744991) 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, 3511717 + ... + 3511864.

Almost surely, 2^519744994 is an apocalyptic number.

519744994 is a deficient number, since it is larger than the sum of its proper divisors (280943354).

519744994 is a wasteful number, since it uses less digits than its factorization.

519744994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7023620.

The product of its digits is 1632960, while the sum is 52.

The square root of 519744994 is about 22797.9164398855. The cubic root of 519744994 is about 804.0136803279.

The spelling of 519744994 in words is "five hundred nineteen million, seven hundred forty-four thousand, nine hundred ninety-four".