538165426 has 12 divisors (see below), whose sum is σ = 827422506. Its totient is φ = 262518080.

The previous prime is 538165393. The next prime is 538165429. The reversal of 538165426 is 624561835.

It can be written as a sum of positive squares in 3 ways, for example, as 173317225 + 364848201 = 13165^2 + 19101^2 .

It is a super-2 number, since 2×538165426² = 579244051483522952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (538165429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76675 + ... + 83398.

Almost surely, 2^538165426 is an apocalyptic number.

538165426 is a deficient number, since it is larger than the sum of its proper divisors (289257080).

538165426 is a wasteful number, since it uses less digits than its factorization.

538165426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160157 (or 160116 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 538165426 is about 23198.3927460503. The cubic root of 538165426 is about 813.4020534891.

It can be divided in two parts, 5381 and 65426, that added together give a palindrome (70807).

The spelling of 538165426 in words is "five hundred thirty-eight million, one hundred sixty-five thousand, four hundred twenty-six".