236138936 has 16 divisors (see below), whose sum is σ = 483011640. Its totient is φ = 107335840.

The previous prime is 236138923. The next prime is 236138939. The reversal of 236138936 is 639831632.

It is a junction number, because it is equal to n+sod(n) for n = 236138893 and 236138902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (236138939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1341611 + ... + 1341786.

Almost surely, 2^236138936 is an apocalyptic number.

It is an amenable number.

236138936 is an abundant number, since it is smaller than the sum of its proper divisors (246872704).

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

236138936 is a wasteful number, since it uses less digits than its factorization.

236138936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683414 (or 2683410 counting only the distinct ones).

The product of its digits is 139968, while the sum is 41.

The square root of 236138936 is about 15366.8128120310. The cubic root of 236138936 is about 618.0959064682.

The spelling of 236138936 in words is "two hundred thirty-six million, one hundred thirty-eight thousand, nine hundred thirty-six".