538814399 has 4 divisors (see below), whose sum is σ = 562241136. Its totient is φ = 515387664.

The previous prime is 538814389. The next prime is 538814413. The reversal of 538814399 is 993418835.

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

It is a cyclic number.

It is not a de Polignac number, because 538814399 - 2⁴ = 538814383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538814389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11713334 + ... + 11713379.

It is an arithmetic number, because the mean of its divisors is an integer number (140560284).

Almost surely, 2^538814399 is an apocalyptic number.

538814399 is a deficient number, since it is larger than the sum of its proper divisors (23426737).

538814399 is a wasteful number, since it uses less digits than its factorization.

538814399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23426736.

The product of its digits is 933120, while the sum is 50.

The square root of 538814399 is about 23212.3759878217. The cubic root of 538814399 is about 813.7288823160.

The spelling of 538814399 in words is "five hundred thirty-eight million, eight hundred fourteen thousand, three hundred ninety-nine".