538857742 has 4 divisors (see below), whose sum is σ = 808286616. Its totient is φ = 269428870.

The previous prime is 538857733. The next prime is 538857743. The reversal of 538857742 is 247758835.

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

It is a super-2 number, since 2×538857742² = 580735332226677128, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538857743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134714434 + ... + 134714437.

It is an arithmetic number, because the mean of its divisors is an integer number (202071654).

Almost surely, 2^538857742 is an apocalyptic number.

538857742 is a deficient number, since it is larger than the sum of its proper divisors (269428874).

538857742 is a wasteful number, since it uses less digits than its factorization.

538857742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269428873.

The product of its digits is 1881600, while the sum is 49.

The square root of 538857742 is about 23213.3095873897. The cubic root of 538857742 is about 813.7507009023.

The spelling of 538857742 in words is "five hundred thirty-eight million, eight hundred fifty-seven thousand, seven hundred forty-two".