531742018 has 16 divisors (see below), whose sum is σ = 843120000. Its totient is φ = 250819632.

The previous prime is 531741971. The next prime is 531742019. The reversal of 531742018 is 810247135.

It is not an unprimeable number, because it can be changed into a prime (531742019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20193 + ... + 38356.

It is an arithmetic number, because the mean of its divisors is an integer number (52695000).

Almost surely, 2^531742018 is an apocalyptic number.

531742018 is a deficient number, since it is larger than the sum of its proper divisors (311377982).

531742018 is a wasteful number, since it uses less digits than its factorization.

531742018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58809.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 531742018 is about 23059.5320420862. The cubic root of 531742018 is about 810.1529041223.

The spelling of 531742018 in words is "five hundred thirty-one million, seven hundred forty-two thousand, eighteen".