2261118004 has 12 divisors (see below), whose sum is σ = 3985424800. Its totient is φ = 1122425208.

The previous prime is 2261117993. The next prime is 2261118019. The reversal of 2261118004 is 4008111622.

It is a super-2 number, since 2×2261118004² = 10225309256025888032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2261118004.

It is a congruent 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, 2032824 + ... + 2033935.

Almost surely, 2^2261118004 is an apocalyptic number.

It is an amenable number.

2261118004 is a deficient number, since it is larger than the sum of its proper divisors (1724306796).

2261118004 is a wasteful number, since it uses less digits than its factorization.

2261118004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4066902 (or 4066900 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 2261118004 is about 47551.2145375909. The cubic root of 2261118004 is about 1312.5254787374.

Adding to 2261118004 its reverse (4008111622), we get a palindrome (6269229626).

The spelling of 2261118004 in words is "two billion, two hundred sixty-one million, one hundred eighteen thousand, four".