539967381 has 8 divisors (see below), whose sum is σ = 739414944. Its totient is φ = 350249040.

The previous prime is 539967377. The next prime is 539967409. The reversal of 539967381 is 183769935.

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

It is not a de Polignac number, because 539967381 - 2² = 539967377 is a prime.

It is a super-2 number, since 2×539967381² = 583129545087998322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539967301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2432175 + ... + 2432396.

It is an arithmetic number, because the mean of its divisors is an integer number (92426868).

Almost surely, 2^539967381 is an apocalyptic number.

It is an amenable number.

539967381 is a deficient number, since it is larger than the sum of its proper divisors (199447563).

539967381 is a wasteful number, since it uses less digits than its factorization.

539967381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4864611.

The product of its digits is 1224720, while the sum is 51.

The square root of 539967381 is about 23237.1982175132. The cubic root of 539967381 is about 814.3088880579.

The spelling of 539967381 in words is "five hundred thirty-nine million, nine hundred sixty-seven thousand, three hundred eighty-one".