238620836 has 12 divisors (see below), whose sum is σ = 418208028. Its totient is φ = 119132832.

The previous prime is 238620827. The next prime is 238620901. The reversal of 238620836 is 638026832.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 231222436 + 7398400 = 15206^2 + 2720^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 238620836.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41351 + ... + 46766.

It is an arithmetic number, because the mean of its divisors is an integer number (34850669).

Almost surely, 2^238620836 is an apocalyptic number.

It is an amenable number.

238620836 is a deficient number, since it is larger than the sum of its proper divisors (179587192).

238620836 is a wasteful number, since it uses less digits than its factorization.

238620836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88798 (or 88796 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 238620836 is about 15447.3569260246. The cubic root of 238620836 is about 620.2538294701.

The spelling of 238620836 in words is "two hundred thirty-eight million, six hundred twenty thousand, eight hundred thirty-six".