531190020 has 24 divisors (see below), whose sum is σ = 1487332224. Its totient is φ = 141650656.

The previous prime is 531190001. The next prime is 531190021. The reversal of 531190020 is 20091135.

It is not an unprimeable number, because it can be changed into a prime (531190021) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4426524 + ... + 4426643.

It is an arithmetic number, because the mean of its divisors is an integer number (61972176).

Almost surely, 2^531190020 is an apocalyptic number.

It is an amenable number.

531190020 is an abundant number, since it is smaller than the sum of its proper divisors (956142204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531190020 is a wasteful number, since it uses less digits than its factorization.

531190020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8853179 (or 8853177 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 531190020 is about 23047.5599576181. The cubic root of 531190020 is about 809.8724688717.

The spelling of 531190020 in words is "five hundred thirty-one million, one hundred ninety thousand, twenty".