3685236538 has 32 divisors (see below), whose sum is σ = 6047032320. Its totient is φ = 1679664000.

The previous prime is 3685236521. The next prime is 3685236539. The reversal of 3685236538 is 8356325863.

It is a junction number, because it is equal to n+sod(n) for n = 3685236491 and 3685236500.

It is not an unprimeable number, because it can be changed into a prime (3685236539) 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, 48723 + ... + 98713.

It is an arithmetic number, because the mean of its divisors is an integer number (188969760).

Almost surely, 2^3685236538 is an apocalyptic number.

3685236538 is a deficient number, since it is larger than the sum of its proper divisors (2361795782).

3685236538 is a wasteful number, since it uses less digits than its factorization.

3685236538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50094.

The product of its digits is 3110400, while the sum is 49.

The square root of 3685236538 is about 60706.1490954582. The cubic root of 3685236538 is about 1544.6204823240.

The spelling of 3685236538 in words is "three billion, six hundred eighty-five million, two hundred thirty-six thousand, five hundred thirty-eight".