499241905 has 4 divisors (see below), whose sum is σ = 599090292. Its totient is φ = 399393520.

The previous prime is 499241861. The next prime is 499241923. The reversal of 499241905 is 509142994.

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

It can be written as a sum of positive squares in 2 ways, for example, as 55591936 + 443649969 = 7456^2 + 21063^2 .

It is a de Polignac number, because none of the positive numbers 2^k-499241905 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49924186 + ... + 49924195.

It is an arithmetic number, because the mean of its divisors is an integer number (149772573).

Almost surely, 2^499241905 is an apocalyptic number.

It is an amenable number.

499241905 is a deficient number, since it is larger than the sum of its proper divisors (99848387).

499241905 is an equidigital number, since it uses as much as digits as its factorization.

499241905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99848386.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 499241905 is about 22343.7218251571. The cubic root of 499241905 is about 793.2991894814.

The spelling of 499241905 in words is "four hundred ninety-nine million, two hundred forty-one thousand, nine hundred five".