481387564 has 36 divisors (see below), whose sum is σ = 985514040. Its totient is φ = 205141440.

The previous prime is 481387507. The next prime is 481387579. The reversal of 481387564 is 465783184.

It is a happy number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 28224 + ... + 41944.

It is an arithmetic number, because the mean of its divisors is an integer number (27375390).

Almost surely, 2^481387564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 481387564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492757020).

481387564 is an abundant number, since it is smaller than the sum of its proper divisors (504126476).

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

481387564 is a wasteful number, since it uses less digits than its factorization.

481387564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13918 (or 13909 counting only the distinct ones).

The product of its digits is 645120, while the sum is 46.

The square root of 481387564 is about 21940.5461190008. The cubic root of 481387564 is about 783.7272648267.

The spelling of 481387564 in words is "four hundred eighty-one million, three hundred eighty-seven thousand, five hundred sixty-four".