531442020 has 24 divisors (see below), whose sum is σ = 1488037824. Its totient is φ = 141717856.

The previous prime is 531442013. The next prime is 531442033. The reversal of 531442020 is 20244135.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4428624 + ... + 4428743.

It is an arithmetic number, because the mean of its divisors is an integer number (62001576).

Almost surely, 2^531442020 is an apocalyptic number.

It is an amenable number.

531442020 is an abundant number, since it is smaller than the sum of its proper divisors (956595804).

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

531442020 is a wasteful number, since it uses less digits than its factorization.

531442020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8857379 (or 8857377 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 531442020 is about 23053.0262655470. The cubic root of 531442020 is about 810.0005182134. Note that the first 3 decimals are identical.

Adding to 531442020 its reverse (20244135), we get a palindrome (551686155).

The spelling of 531442020 in words is "five hundred thirty-one million, four hundred forty-two thousand, twenty".