2049142818 has 32 divisors (see below), whose sum is σ = 4501555200. Its totient is φ = 618962256.

The previous prime is 2049142817. The next prime is 2049142819. The reversal of 2049142818 is 8182419402.

It is an interprime number because it is at equal distance from previous prime (2049142817) and next prime (2049142819).

It is a super-2 number, since 2×2049142818² = 8397972577121962248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2049142817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388138 + ... + 393381.

It is an arithmetic number, because the mean of its divisors is an integer number (140673600).

Almost surely, 2^2049142818 is an apocalyptic number.

2049142818 is an abundant number, since it is smaller than the sum of its proper divisors (2452412382).

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

2049142818 is a wasteful number, since it uses less digits than its factorization.

2049142818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781566.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 2049142818 is about 45267.4587093201. The cubic root of 2049142818 is about 1270.1570099555.

The spelling of 2049142818 in words is "two billion, forty-nine million, one hundred forty-two thousand, eight hundred eighteen".