459538643 has 4 divisors (see below), whose sum is σ = 479518608. Its totient is φ = 439558680.

The previous prime is 459538633. The next prime is 459538649. The reversal of 459538643 is 346835954.

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

It is a cyclic number.

It is not a de Polignac number, because 459538643 - 2¹⁶ = 459473107 is a prime.

It is a super-2 number, since 2×459538643² = 422351528820562898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (459538649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9989948 + ... + 9989993.

It is an arithmetic number, because the mean of its divisors is an integer number (119879652).

Almost surely, 2^459538643 is an apocalyptic number.

459538643 is a deficient number, since it is larger than the sum of its proper divisors (19979965).

459538643 is a wasteful number, since it uses less digits than its factorization.

459538643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19979964.

The product of its digits is 1555200, while the sum is 47.

The square root of 459538643 is about 21436.8524508613. The cubic root of 459538643 is about 771.6861027768.

The spelling of 459538643 in words is "four hundred fifty-nine million, five hundred thirty-eight thousand, six hundred forty-three".