538279469 has 16 divisors (see below), whose sum is σ = 685345920. Its totient is φ = 411203520.

The previous prime is 538279453. The next prime is 538279477. The reversal of 538279469 is 964972835.

It is a happy number.

It is not a de Polignac number, because 538279469 - 2⁴ = 538279453 is a prime.

It is a super-2 number, since 2×538279469² = 579489573493843922, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 538279469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538279409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99347 + ... + 104624.

It is an arithmetic number, because the mean of its divisors is an integer number (42834120).

Almost surely, 2^538279469 is an apocalyptic number.

It is an amenable number.

538279469 is a deficient number, since it is larger than the sum of its proper divisors (147066451).

538279469 is a wasteful number, since it uses less digits than its factorization.

538279469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204020.

The product of its digits is 3265920, while the sum is 53.

The square root of 538279469 is about 23200.8506094065. The cubic root of 538279469 is about 813.4595056245.

The spelling of 538279469 in words is "five hundred thirty-eight million, two hundred seventy-nine thousand, four hundred sixty-nine".