538862066 has 4 divisors (see below), whose sum is σ = 808293102. Its totient is φ = 269431032.

The previous prime is 538862047. The next prime is 538862069. The reversal of 538862066 is 660268835.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 363855625 + 175006441 = 19075^2 + 13229^2 .

It is not an unprimeable number, because it can be changed into a prime (538862069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134715515 + ... + 134715518.

Almost surely, 2^538862066 is an apocalyptic number.

538862066 is a deficient number, since it is larger than the sum of its proper divisors (269431036).

538862066 is a wasteful number, since it uses less digits than its factorization.

538862066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269431035.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 538862066 is about 23213.4027234268. The cubic root of 538862066 is about 813.7528775117.

The spelling of 538862066 in words is "five hundred thirty-eight million, eight hundred sixty-two thousand, sixty-six".