459999990 has 48 divisors (see below), whose sum is σ = 1216285200. Its totient is φ = 120586176.

The previous prime is 459999961. The next prime is 460000003. The reversal of 459999990 is 99999954.

459999990 is a `hidden beast` number, since 459 + 9 + 9 + 99 + 90 = 666.

It is a congruent number.

It is an unprimeable number.

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, 38005 + ... + 48624.

It is an arithmetic number, because the mean of its divisors is an integer number (25339275).

Almost surely, 2^459999990 is an apocalyptic number.

459999990 is an abundant number, since it is smaller than the sum of its proper divisors (756285210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

459999990 is a wasteful number, since it uses less digits than its factorization.

459999990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86701 (or 86698 counting only the distinct ones).

The product of its (nonzero) digits is 10628820, while the sum is 63.

The square root of 459999990 is about 21447.6103564010. The cubic root of 459999990 is about 771.9442573424.

The spelling of 459999990 in words is "four hundred fifty-nine million, nine hundred ninety-nine thousand, nine hundred ninety".