538126849 has 8 divisors (see below), whose sum is σ = 579702312. Its totient is φ = 496577280.

The previous prime is 538126817. The next prime is 538126859. The reversal of 538126849 is 948621835.

It can be written as a sum of positive squares in 4 ways, for example, as 211600 + 537915249 = 460^2 + 23193^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 538126849 - 2⁵ = 538126817 is a prime.

It is a super-2 number, since 2×538126849² = 579161011229337602, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 538126799 and 538126808.

It is not an unprimeable number, because it can be changed into a prime (538126859) 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, 72009 + ... + 79129.

It is an arithmetic number, because the mean of its divisors is an integer number (72462789).

Almost surely, 2^538126849 is an apocalyptic number.

It is an amenable number.

538126849 is a deficient number, since it is larger than the sum of its proper divisors (41575463).

538126849 is a wasteful number, since it uses less digits than its factorization.

538126849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12947.

The product of its digits is 414720, while the sum is 46.

The square root of 538126849 is about 23197.5612726855. The cubic root of 538126849 is about 813.3826174822.

The spelling of 538126849 in words is "five hundred thirty-eight million, one hundred twenty-six thousand, eight hundred forty-nine".