920317400238 has 16 divisors (see below), whose sum is σ = 1841244520320. Its totient is φ = 306670846776.

The previous prime is 920317400221. The next prime is 920317400239. The reversal of 920317400238 is 832004713029.

It is a junction number, because it is equal to n+sod(n) for n = 920317400196 and 920317400205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920317400239) 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 7 ways as a sum of consecutive naturals, for example, 25385370 + ... + 25421597.

It is an arithmetic number, because the mean of its divisors is an integer number (115077782520).

Almost surely, 2^920317400238 is an apocalyptic number.

920317400238 is an abundant number, since it is smaller than the sum of its proper divisors (920927120082).

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

920317400238 is a wasteful number, since it uses less digits than its factorization.

920317400238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50809991.

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 920317400238 in words is "nine hundred twenty billion, three hundred seventeen million, four hundred thousand, two hundred thirty-eight".