3625386138 has 48 divisors (see below), whose sum is σ = 8573812416. Its totient is φ = 1097997120.

The previous prime is 3625386131. The next prime is 3625386161. The reversal of 3625386138 is 8316835263.

3625386138 is a `hidden beast` number, since 3 + 6 + 25 + 3 + 8 + 613 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 3625386093 and 3625386102.

It is not an unprimeable number, because it can be changed into a prime (3625386131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 466795 + ... + 474497.

It is an arithmetic number, because the mean of its divisors is an integer number (178621092).

Almost surely, 2^3625386138 is an apocalyptic number.

3625386138 is an abundant number, since it is smaller than the sum of its proper divisors (4948426278).

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

3625386138 is a wasteful number, since it uses less digits than its factorization.

3625386138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10099 (or 10096 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 3625386138 is about 60211.1795101209. The cubic root of 3625386138 is about 1536.2129551948.

The spelling of 3625386138 in words is "three billion, six hundred twenty-five million, three hundred eighty-six thousand, one hundred thirty-eight".