460644821 has 24 divisors (see below), whose sum is σ = 572154624. Its totient is φ = 363130560.

The previous prime is 460644809. The next prime is 460644859. The reversal of 460644821 is 128446064.

It is not a de Polignac number, because 460644821 - 2¹⁴ = 460628437 is a prime.

It is a super-2 number, since 2×460644821² = 424387302228244082, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (460644871) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 433631 + ... + 434691.

It is an arithmetic number, because the mean of its divisors is an integer number (23839776).

Almost surely, 2^460644821 is an apocalyptic number.

It is an amenable number.

460644821 is a deficient number, since it is larger than the sum of its proper divisors (111509803).

460644821 is a wasteful number, since it uses less digits than its factorization.

460644821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461 (or 1448 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 460644821 is about 21462.6377922193. The cubic root of 460644821 is about 772.3047944330.

The spelling of 460644821 in words is "four hundred sixty million, six hundred forty-four thousand, eight hundred twenty-one".