539109994 has 12 divisors (see below), whose sum is σ = 811144962. Its totient is φ = 268730280.

The previous prime is 539109979. The next prime is 539110007. The reversal of 539109994 is 499901935.

It can be written as a sum of positive squares in only one way, i.e., 290259369 + 248850625 = 17037^2 + 15775^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 795984 + ... + 796660.

Almost surely, 2^539109994 is an apocalyptic number.

539109994 is a deficient number, since it is larger than the sum of its proper divisors (272034968).

539109994 is an frugal number, since it uses more digits than its factorization.

539109994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941 (or 1310 counting only the distinct ones).

The product of its (nonzero) digits is 393660, while the sum is 49.

The square root of 539109994 is about 23218.7423001333. The cubic root of 539109994 is about 813.8776597163.

The spelling of 539109994 in words is "five hundred thirty-nine million, one hundred nine thousand, nine hundred ninety-four".