460220639 has 4 divisors (see below), whose sum is σ = 480230256. Its totient is φ = 440211024.

The previous prime is 460220627. The next prime is 460220653. The reversal of 460220639 is 936022064.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-460220639 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 (460220609) 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 3 ways as a sum of consecutive naturals, for example, 10004774 + ... + 10004819.

It is an arithmetic number, because the mean of its divisors is an integer number (120057564).

Almost surely, 2^460220639 is an apocalyptic number.

460220639 is a deficient number, since it is larger than the sum of its proper divisors (20009617).

460220639 is a wasteful number, since it uses less digits than its factorization.

460220639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20009616.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 460220639 is about 21452.7536460940. The cubic root of 460220639 is about 772.0676642304.

The spelling of 460220639 in words is "four hundred sixty million, two hundred twenty thousand, six hundred thirty-nine".