3720636043 has 8 divisors (see below), whose sum is σ = 3800798208. Its totient is φ = 3640515624.

The previous prime is 3720636037. The next prime is 3720636077. The reversal of 3720636043 is 3406360273.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3720636043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3720636443) by changing a digit.

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, 227230 + ... + 243052.

It is an arithmetic number, because the mean of its divisors is an integer number (475099776).

Almost surely, 2^3720636043 is an apocalyptic number.

3720636043 is a deficient number, since it is larger than the sum of its proper divisors (80162165).

3720636043 is a wasteful number, since it uses less digits than its factorization.

3720636043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20873.

The product of its (nonzero) digits is 54432, while the sum is 34.

The square root of 3720636043 is about 60997.0166729489. The cubic root of 3720636043 is about 1549.5504826201.

The spelling of 3720636043 in words is "three billion, seven hundred twenty million, six hundred thirty-six thousand, forty-three".