481664428 has 24 divisors (see below), whose sum is σ = 965334272. Its totient is φ = 205997904.

The previous prime is 481664419. The next prime is 481664431. The reversal of 481664428 is 824466184.

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 7 ways as a sum of consecutive naturals, for example, 4026 + ... + 31297.

Almost surely, 2^481664428 is an apocalyptic number.

It is an amenable number.

481664428 is an abundant number, since it is smaller than the sum of its proper divisors (483669844).

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

481664428 is a wasteful number, since it uses less digits than its factorization.

481664428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35821 (or 35819 counting only the distinct ones).

The product of its digits is 294912, while the sum is 43.

The square root of 481664428 is about 21946.8546265746. The cubic root of 481664428 is about 783.8774863226.

The spelling of 481664428 in words is "four hundred eighty-one million, six hundred sixty-four thousand, four hundred twenty-eight".