2263981018 has 32 divisors (see below), whose sum is σ = 3876178320. Its totient is φ = 982471680.

The previous prime is 2263980991. The next prime is 2263981037. The reversal of 2263981018 is 8101893622.

It can be written as a sum of positive squares in 8 ways, for example, as 706336929 + 1557644089 = 26577^2 + 39467^2 .

It is a super-2 number, since 2×2263981018² = 10251220099728632648, which contains 22 as substring.

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, 608548 + ... + 612256.

Almost surely, 2^2263981018 is an apocalyptic number.

2263981018 is a deficient number, since it is larger than the sum of its proper divisors (1612197302).

2263981018 is a wasteful number, since it uses less digits than its factorization.

2263981018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5122.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 2263981018 is about 47581.3095448202. The cubic root of 2263981018 is about 1313.0792157094.

The spelling of 2263981018 in words is "two billion, two hundred sixty-three million, nine hundred eighty-one thousand, eighteen".