2118244758 has 32 divisors (see below), whose sum is σ = 4954304256. Its totient is φ = 591137568.

The previous prime is 2118244757. The next prime is 2118244759. The reversal of 2118244758 is 8574428112.

It is an interprime number because it is at equal distance from previous prime (2118244757) and next prime (2118244759).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118244753) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 584641 + ... + 588252.

It is an arithmetic number, because the mean of its divisors is an integer number (154822008).

Almost surely, 2^2118244758 is an apocalyptic number.

2118244758 is an abundant number, since it is smaller than the sum of its proper divisors (2836059498).

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

2118244758 is a wasteful number, since it uses less digits than its factorization.

2118244758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172948.

The product of its digits is 143360, while the sum is 42.

The square root of 2118244758 is about 46024.3930758462. The cubic root of 2118244758 is about 1284.2770253193.

The spelling of 2118244758 in words is "two billion, one hundred eighteen million, two hundred forty-four thousand, seven hundred fifty-eight".