531465320 has 64 divisors (see below), whose sum is σ = 1211760000. Its totient is φ = 209772288.

The previous prime is 531465313. The next prime is 531465343. The reversal of 531465320 is 23564135.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1424654 + ... + 1425026.

It is an arithmetic number, because the mean of its divisors is an integer number (18933750).

Almost surely, 2^531465320 is an apocalyptic number.

It is an amenable number.

531465320 is an abundant number, since it is smaller than the sum of its proper divisors (680294680).

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

531465320 is a wasteful number, since it uses less digits than its factorization.

531465320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762 (or 758 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 531465320 is about 23053.5316166526. The cubic root of 531465320 is about 810.0123556516.

The spelling of 531465320 in words is "five hundred thirty-one million, four hundred sixty-five thousand, three hundred twenty".