236385636420 has 24 divisors (see below), whose sum is σ = 661879782144. Its totient is φ = 63036169696.

The previous prime is 236385636413. The next prime is 236385636433. The reversal of 236385636420 is 24636583632.

It is a self number, because there is not a number n which added to its sum of digits gives 236385636420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1969880244 + ... + 1969880363.

It is an arithmetic number, because the mean of its divisors is an integer number (27578324256).

Almost surely, 2^236385636420 is an apocalyptic number.

236385636420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

236385636420 is an abundant number, since it is smaller than the sum of its proper divisors (425494145724).

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

236385636420 is a wasteful number, since it uses less digits than its factorization.

236385636420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3939760619 (or 3939760617 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 48.

The spelling of 236385636420 in words is "two hundred thirty-six billion, three hundred eighty-five million, six hundred thirty-six thousand, four hundred twenty".