238985620236 has 120 divisors (see below), whose sum is σ = 703537443840. Its totient is φ = 70083727200.

The previous prime is 238985620231. The next prime is 238985620249. The reversal of 238985620236 is 632026589832.

238985620236 is a `hidden beast` number, since 2 + 3 + 8 + 9 + 8 + 5 + 620 + 2 + 3 + 6 = 666.

238985620236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×238985620236² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (238985620231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 971056 + ... + 1192023.

It is an arithmetic number, because the mean of its divisors is an integer number (5862812032).

Almost surely, 2^238985620236 is an apocalyptic number.

It is an amenable number.

238985620236 is an abundant number, since it is smaller than the sum of its proper divisors (464551823604).

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

238985620236 is a wasteful number, since it uses less digits than its factorization.

238985620236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163137 (or 2163126 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 238985620236 in words is "two hundred thirty-eight billion, nine hundred eighty-five million, six hundred twenty thousand, two hundred thirty-six".