4099402181 has 12 divisors (see below), whose sum is σ = 4870156608. Its totient is φ = 3439010232.

The previous prime is 4099402147. The next prime is 4099402259. The reversal of 4099402181 is 1812049904.

4099402181 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-4099402181 is a prime.

It is a super-2 number, since 2×4099402181² = 33610196483175113522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4099402481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 887711 + ... + 892316.

It is an arithmetic number, because the mean of its divisors is an integer number (405846384).

Almost surely, 2^4099402181 is an apocalyptic number.

It is an amenable number.

4099402181 is a deficient number, since it is larger than the sum of its proper divisors (770754427).

4099402181 is a wasteful number, since it uses less digits than its factorization.

4099402181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780088 (or 1780081 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 4099402181 is about 64026.5740220418. The cubic root of 4099402181 is about 1600.4428697229.

The spelling of 4099402181 in words is "four billion, ninety-nine million, four hundred two thousand, one hundred eighty-one".