4001836 has 12 divisors (see below), whose sum is σ = 7044912. Its totient is φ = 1989008.

The previous prime is 4001831. The next prime is 4001849. The reversal of 4001836 is 6381004.

It is not an unprimeable number, because it can be changed into a prime (4001831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2200 + ... + 3583.

It is an arithmetic number, because the mean of its divisors is an integer number (587076).

Almost surely, 2^4001836 is an apocalyptic number.

It is an amenable number.

4001836 is a deficient number, since it is larger than the sum of its proper divisors (3043076).

4001836 is a wasteful number, since it uses less digits than its factorization.

4001836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5960 (or 5958 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 4001836 is about 2000.4589473418. The cubic root of 4001836 is about 158.7643887179.

The spelling of 4001836 in words is "four million, one thousand, eight hundred thirty-six".