538843369 has 9 divisors (see below), whose sum is σ = 546017277. Its totient is φ = 531763404.

The previous prime is 538843351. The next prime is 538843381. The reversal of 538843369 is 963348835.

It is a happy number.

The square root of 538843369 is 23213.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2^k-538843369 is a prime.

It is a super-2 number, since 2×538843369² = 580704352630540322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538843309) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3226524 + ... + 3226690.

Almost surely, 2^538843369 is an apocalyptic number.

538843369 is the 23213-rd square number.

538843369 is the 11607-th centered octagonal number.

It is an amenable number.

538843369 is a deficient number, since it is larger than the sum of its proper divisors (7173908).

538843369 is an frugal number, since it uses more digits than its factorization.

538843369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 306 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 49.

The cubic root of 538843369 is about 813.7434657566.

Multiplying 538843369 by its sum of digits (49), we get a square (26403325081 = 162491²).

The spelling of 538843369 in words is "five hundred thirty-eight million, eight hundred forty-three thousand, three hundred sixty-nine".