30836136 has 32 divisors (see below), whose sum is σ = 78733440. Its totient is φ = 10059648.

The previous prime is 30836129. The next prime is 30836137. The reversal of 30836136 is 63163803.

It is not an unprimeable number, because it can be changed into a prime (30836137) 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, 12541 + ... + 14796.

It is an arithmetic number, because the mean of its divisors is an integer number (2460420).

Almost surely, 2^30836136 is an apocalyptic number.

It is an amenable number.

30836136 is an abundant number, since it is smaller than the sum of its proper divisors (47897304).

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

30836136 is a wasteful number, since it uses less digits than its factorization.

30836136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27393 (or 27389 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 30836136 is about 5553.0294434660. The cubic root of 30836136 is about 313.5835825867.

Adding to 30836136 its reverse (63163803), we get a palindrome (93999939).

The spelling of 30836136 in words is "thirty million, eight hundred thirty-six thousand, one hundred thirty-six".