481278564 has 48 divisors (see below), whose sum is σ = 1343744640. Its totient is φ = 148085280.

The previous prime is 481278563. The next prime is 481278583. The reversal of 481278564 is 465872184.

481278564 is a `hidden beast` number, since 4 + 8 + 12 + 78 + 564 = 666.

It is not an unprimeable number, because it can be changed into a prime (481278563) by changing a digit.

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, 169992 + ... + 172799.

It is an arithmetic number, because the mean of its divisors is an integer number (27994680).

Almost surely, 2^481278564 is an apocalyptic number.

It is an amenable number.

481278564 is an abundant number, since it is smaller than the sum of its proper divisors (862466076).

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

481278564 is a wasteful number, since it uses less digits than its factorization.

481278564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342817 (or 342809 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 481278564 is about 21938.0619928015. The cubic root of 481278564 is about 783.6681075581.

The spelling of 481278564 in words is "four hundred eighty-one million, two hundred seventy-eight thousand, five hundred sixty-four".