3685208838 has 16 divisors (see below), whose sum is σ = 7399099440. Its totient is φ = 1223622656.

The previous prime is 3685208837. The next prime is 3685208869. The reversal of 3685208838 is 8388025863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3685208837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193403 + ... + 1196486.

It is an arithmetic number, because the mean of its divisors is an integer number (462443715).

Almost surely, 2^3685208838 is an apocalyptic number.

3685208838 is an abundant number, since it is smaller than the sum of its proper divisors (3713890602).

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

3685208838 is a wasteful number, since it uses less digits than its factorization.

3685208838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390151.

The product of its (nonzero) digits is 2211840, while the sum is 51.

The square root of 3685208838 is about 60705.9209468072. The cubic root of 3685208838 is about 1544.6166122790.

The spelling of 3685208838 in words is "three billion, six hundred eighty-five million, two hundred eight thousand, eight hundred thirty-eight".