461304021 has 32 divisors (see below), whose sum is σ = 662596480. Its totient is φ = 284601600.

The previous prime is 461304017. The next prime is 461304029. The reversal of 461304021 is 120403164.

It is not a de Polignac number, because 461304021 - 2² = 461304017 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 (461304029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 628971 + ... + 629703.

It is an arithmetic number, because the mean of its divisors is an integer number (20706140).

Almost surely, 2^461304021 is an apocalyptic number.

It is an amenable number.

461304021 is a deficient number, since it is larger than the sum of its proper divisors (201292459).

461304021 is a wasteful number, since it uses less digits than its factorization.

461304021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 461304021 is about 21477.9892215263. The cubic root of 461304021 is about 772.6730178751.

Adding to 461304021 its reverse (120403164), we get a palindrome (581707185).

The spelling of 461304021 in words is "four hundred sixty-one million, three hundred four thousand, twenty-one".