2499338218 has 32 divisors (see below), whose sum is σ = 4082878800. Its totient is φ = 1140618240.

The previous prime is 2499338209. The next prime is 2499338243. The reversal of 2499338218 is 8128339942.

It can be written as a sum of positive squares in 8 ways, for example, as 79977249 + 2419360969 = 8943^2 + 49187^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 932296 + ... + 934972.

Almost surely, 2^2499338218 is an apocalyptic number.

2499338218 is a deficient number, since it is larger than the sum of its proper divisors (1583540582).

2499338218 is a wasteful number, since it uses less digits than its factorization.

2499338218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082.

The product of its digits is 746496, while the sum is 49.

The square root of 2499338218 is about 49993.3817419866. The cubic root of 2499338218 is about 1357.0890408809.

The spelling of 2499338218 in words is "two billion, four hundred ninety-nine million, three hundred thirty-eight thousand, two hundred eighteen".