481387021 has 8 divisors (see below), whose sum is σ = 518508320. Its totient is φ = 445444272.

The previous prime is 481386989. The next prime is 481387043. The reversal of 481387021 is 120783184.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 481387021 - 2⁵ = 481386989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481387091) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 293790 + ... + 295423.

It is an arithmetic number, because the mean of its divisors is an integer number (64813540).

Almost surely, 2^481387021 is an apocalyptic number.

It is an amenable number.

481387021 is a deficient number, since it is larger than the sum of its proper divisors (37121299).

481387021 is a wasteful number, since it uses less digits than its factorization.

481387021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589275.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 481387021 is about 21940.5337446471. The cubic root of 481387021 is about 783.7269701480.

The spelling of 481387021 in words is "four hundred eighty-one million, three hundred eighty-seven thousand, twenty-one".