538381239 has 8 divisors (see below), whose sum is σ = 783100032. Its totient is φ = 326291640.

The previous prime is 538381237. The next prime is 538381241. The reversal of 538381239 is 932183835.

It is an interprime number because it is at equal distance from previous prime (538381237) and next prime (538381241).

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

It is not a de Polignac number, because 538381239 - 2¹ = 538381237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 538381239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538381231) 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, 8157259 + ... + 8157324.

It is an arithmetic number, because the mean of its divisors is an integer number (97887504).

Almost surely, 2^538381239 is an apocalyptic number.

538381239 is a deficient number, since it is larger than the sum of its proper divisors (244718793).

538381239 is a wasteful number, since it uses less digits than its factorization.

538381239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16314597.

The product of its digits is 155520, while the sum is 42.

The square root of 538381239 is about 23203.0437443022. The cubic root of 538381239 is about 813.5107680646.

The spelling of 538381239 in words is "five hundred thirty-eight million, three hundred eighty-one thousand, two hundred thirty-nine".