3138556236 has 24 divisors (see below), whose sum is σ = 7325100720. Its totient is φ = 1045927872.

The previous prime is 3138556231. The next prime is 3138556237. The reversal of 3138556236 is 6326558313.

It is not an unprimeable number, because it can be changed into a prime (3138556231) 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, 22270 + ... + 82298.

It is an arithmetic number, because the mean of its divisors is an integer number (305212530).

Almost surely, 2^3138556236 is an apocalyptic number.

It is an amenable number.

3138556236 is an abundant number, since it is smaller than the sum of its proper divisors (4186544484).

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

3138556236 is a wasteful number, since it uses less digits than its factorization.

3138556236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64393 (or 64391 counting only the distinct ones).

The product of its digits is 388800, while the sum is 42.

The square root of 3138556236 is about 56022.8188865930. The cubic root of 3138556236 is about 1464.1198821624.

The spelling of 3138556236 in words is "three billion, one hundred thirty-eight million, five hundred fifty-six thousand, two hundred thirty-six".