538634493 has 24 divisors (see below), whose sum is σ = 833808768. Its totient is φ = 334189152.

The previous prime is 538634491. The next prime is 538634513. The reversal of 538634493 is 394436835.

538634493 is a `hidden beast` number, since 5 + 3 + 8 + 634 + 4 + 9 + 3 = 666.

538634493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 538634493 - 2¹ = 538634491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538634491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27505 + ... + 42822.

It is an arithmetic number, because the mean of its divisors is an integer number (34742032).

Almost surely, 2^538634493 is an apocalyptic number.

It is an amenable number.

538634493 is a deficient number, since it is larger than the sum of its proper divisors (295174275).

538634493 is a wasteful number, since it uses less digits than its factorization.

538634493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70393 (or 70390 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The square root of 538634493 is about 23208.5004470345. The cubic root of 538634493 is about 813.6383062878.

The spelling of 538634493 in words is "five hundred thirty-eight million, six hundred thirty-four thousand, four hundred ninety-three".