531360780 has 48 divisors (see below), whose sum is σ = 1491243264. Its totient is φ = 141369280.

The previous prime is 531360769. The next prime is 531360793. The reversal of 531360780 is 87063135.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 16585 + ... + 36575.

It is an arithmetic number, because the mean of its divisors is an integer number (31067568).

Almost surely, 2^531360780 is an apocalyptic number.

It is an amenable number.

531360780 is an abundant number, since it is smaller than the sum of its proper divisors (959882484).

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

531360780 is a wasteful number, since it uses less digits than its factorization.

531360780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20446 (or 20444 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 531360780 is about 23051.2641735763. The cubic root of 531360780 is about 809.9592419668.

The spelling of 531360780 in words is "five hundred thirty-one million, three hundred sixty thousand, seven hundred eighty".