531366242 has 24 divisors (see below), whose sum is σ = 884132496. Its totient is φ = 237534000.

The previous prime is 531366221. The next prime is 531366259. The reversal of 531366242 is 242663135.

It is a super-3 number, since 3×531366242³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 531366199 and 531366208.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 78617 + ... + 85107.

It is an arithmetic number, because the mean of its divisors is an integer number (36838854).

Almost surely, 2^531366242 is an apocalyptic number.

531366242 is a deficient number, since it is larger than the sum of its proper divisors (352766254).

531366242 is a wasteful number, since it uses less digits than its factorization.

531366242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6626 (or 6565 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 531366242 is about 23051.3826483359. The cubic root of 531366242 is about 809.9620172201.

The spelling of 531366242 in words is "five hundred thirty-one million, three hundred sixty-six thousand, two hundred forty-two".