4081267836 has 24 divisors (see below), whose sum is σ = 10581065040. Its totient is φ = 1360422576.

The previous prime is 4081267823. The next prime is 4081267903. The reversal of 4081267836 is 6387621804.

It is a junction number, because it is equal to n+sod(n) for n = 4081267791 and 4081267800.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18894651 + ... + 18894866.

It is an arithmetic number, because the mean of its divisors is an integer number (440877710).

Almost surely, 2^4081267836 is an apocalyptic number.

It is an amenable number.

4081267836 is an abundant number, since it is smaller than the sum of its proper divisors (6499797204).

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

4081267836 is a wasteful number, since it uses less digits than its factorization.

4081267836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37789530 (or 37789522 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 4081267836 is about 63884.8012910739. The cubic root of 4081267836 is about 1598.0794450695.

The spelling of 4081267836 in words is "four billion, eighty-one million, two hundred sixty-seven thousand, eight hundred thirty-six".