461504321 has 16 divisors (see below), whose sum is σ = 497171664. Its totient is φ = 426829824.

The previous prime is 461504311. The next prime is 461504353. The reversal of 461504321 is 123405164.

It can be written as a sum of positive squares in 8 ways, for example, as 71639296 + 389865025 = 8464^2 + 19745^2 .

It is a cyclic number.

It is not a de Polignac number, because 461504321 - 2¹⁰ = 461503297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (461504311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462395 + ... + 463391.

It is an arithmetic number, because the mean of its divisors is an integer number (31073229).

Almost surely, 2^461504321 is an apocalyptic number.

It is an amenable number.

461504321 is a deficient number, since it is larger than the sum of its proper divisors (35667343).

461504321 is a wasteful number, since it uses less digits than its factorization.

461504321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 461504321 is about 21482.6516286980. The cubic root of 461504321 is about 772.7848342361.

Adding to 461504321 its reverse (123405164), we get a palindrome (584909485).

The spelling of 461504321 in words is "four hundred sixty-one million, five hundred four thousand, three hundred twenty-one".