481581730 has 48 divisors (see below), whose sum is σ = 1005217344. Its totient is φ = 162725760.

The previous prime is 481581721. The next prime is 481581731. The reversal of 481581730 is 37185184.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 481581730.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481581731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 372385 + ... + 373675.

It is an arithmetic number, because the mean of its divisors is an integer number (20942028).

Almost surely, 2^481581730 is an apocalyptic number.

481581730 is an abundant number, since it is smaller than the sum of its proper divisors (523635614).

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

481581730 is a wasteful number, since it uses less digits than its factorization.

481581730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451 (or 1378 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 481581730 is about 21944.9704943980. The cubic root of 481581730 is about 783.8326218852.

The spelling of 481581730 in words is "four hundred eighty-one million, five hundred eighty-one thousand, seven hundred thirty".