3681155238 has 32 divisors (see below), whose sum is σ = 7444573920. Its totient is φ = 1213363200.

The previous prime is 3681155201. The next prime is 3681155239. The reversal of 3681155238 is 8325511863.

It is a self number, because there is not a number n which added to its sum of digits gives 3681155238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3681155239) 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 15 ways as a sum of consecutive naturals, for example, 992788 + ... + 996488.

It is an arithmetic number, because the mean of its divisors is an integer number (232642935).

Almost surely, 2^3681155238 is an apocalyptic number.

3681155238 is an abundant number, since it is smaller than the sum of its proper divisors (3763418682).

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

3681155238 is a wasteful number, since it uses less digits than its factorization.

3681155238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5512.

The product of its digits is 172800, while the sum is 42.

The square root of 3681155238 is about 60672.5245724949. The cubic root of 3681155238 is about 1544.0500631995.

The spelling of 3681155238 in words is "three billion, six hundred eighty-one million, one hundred fifty-five thousand, two hundred thirty-eight".