459999991 has 16 divisors (see below), whose sum is σ = 532351008. Its totient is φ = 392832000.

The previous prime is 459999961. The next prime is 460000003. The reversal of 459999991 is 199999954.

It is not a de Polignac number, because 459999991 - 2⁷ = 459999863 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 (459999961) 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, 110341 + ... + 114433.

It is an arithmetic number, because the mean of its divisors is an integer number (33271938).

Almost surely, 2^459999991 is an apocalyptic number.

459999991 is a deficient number, since it is larger than the sum of its proper divisors (72351017).

459999991 is a wasteful number, since it uses less digits than its factorization.

459999991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4722.

The product of its digits is 10628820, while the sum is 64.

The square root of 459999991 is about 21447.6103797136. The cubic root of 459999991 is about 771.9442579017.

It can be divided in two parts, 4 and 59999991, that added together give a palindrome (59999995).

The spelling of 459999991 in words is "four hundred fifty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-one".