531945772 has 18 divisors (see below), whose sum is σ = 937786668. Its totient is φ = 264021048.

The previous prime is 531945751. The next prime is 531945823. The reversal of 531945772 is 277549135.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 73843 + ... + 80725.

Almost surely, 2^531945772 is an apocalyptic number.

It is an amenable number.

531945772 is a deficient number, since it is larger than the sum of its proper divisors (405840896).

531945772 is a wasteful number, since it uses less digits than its factorization.

531945772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7165 (or 7024 counting only the distinct ones).

The product of its digits is 264600, while the sum is 43.

The square root of 531945772 is about 23063.9496183980. The cubic root of 531945772 is about 810.2563695933.

The spelling of 531945772 in words is "five hundred thirty-one million, nine hundred forty-five thousand, seven hundred seventy-two".