539400039 has 4 divisors (see below), whose sum is σ = 719200056. Its totient is φ = 359600024.

The previous prime is 539400019. The next prime is 539400053. The reversal of 539400039 is 930004935.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-539400039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 539399982 and 539400009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539400019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89900004 + ... + 89900009.

It is an arithmetic number, because the mean of its divisors is an integer number (179800014).

Almost surely, 2^539400039 is an apocalyptic number.

539400039 is a deficient number, since it is larger than the sum of its proper divisors (179800017).

539400039 is a wasteful number, since it uses less digits than its factorization.

539400039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179800016.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 539400039 is about 23224.9873842808. The cubic root of 539400039 is about 814.0235908663.

The spelling of 539400039 in words is "five hundred thirty-nine million, four hundred thousand, thirty-nine".