557845238 has 8 divisors (see below), whose sum is σ = 836988120. Its totient is φ = 278849200.

The previous prime is 557845237. The next prime is 557845261. The reversal of 557845238 is 832548755.

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

It is a super-2 number, since 2×557845238² = 622382619118553288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 557845192 and 557845201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557845237) 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 in 3 ways as a sum of consecutive naturals, for example, 26663 + ... + 42738.

It is an arithmetic number, because the mean of its divisors is an integer number (104623515).

Almost surely, 2^557845238 is an apocalyptic number.

557845238 is a deficient number, since it is larger than the sum of its proper divisors (279142882).

557845238 is a wasteful number, since it uses less digits than its factorization.

557845238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73422.

The product of its digits is 1344000, while the sum is 47.

The square root of 557845238 is about 23618.7475959247. The cubic root of 557845238 is about 823.1985119473.

The spelling of 557845238 in words is "five hundred fifty-seven million, eight hundred forty-five thousand, two hundred thirty-eight".