538020939 has 4 divisors (see below), whose sum is σ = 717361256. Its totient is φ = 358680624.

The previous prime is 538020919. The next prime is 538020949. The reversal of 538020939 is 939020835.

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

It is not a de Polignac number, because 538020939 - 2¹¹ = 538018891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 538020897 and 538020906.

It is not an unprimeable number, because it can be changed into a prime (538020919) 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, 89670154 + ... + 89670159.

It is an arithmetic number, because the mean of its divisors is an integer number (179340314).

Almost surely, 2^538020939 is an apocalyptic number.

538020939 is a deficient number, since it is larger than the sum of its proper divisors (179340317).

538020939 is a wasteful number, since it uses less digits than its factorization.

538020939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179340316.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 538020939 is about 23195.2783772905. The cubic root of 538020939 is about 813.3292527379.

The spelling of 538020939 in words is "five hundred thirty-eight million, twenty thousand, nine hundred thirty-nine".