238628793 has 24 divisors (see below), whose sum is σ = 354111744. Its totient is φ = 142089120.

The previous prime is 238628759. The next prime is 238628807. The reversal of 238628793 is 397826832.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-238628793 is a prime.

It is a Curzon number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (238628293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34296 + ... + 40662.

It is an arithmetic number, because the mean of its divisors is an integer number (14754656).

Almost surely, 2^238628793 is an apocalyptic number.

It is an amenable number.

238628793 is a deficient number, since it is larger than the sum of its proper divisors (115482951).

238628793 is a wasteful number, since it uses less digits than its factorization.

238628793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6445 (or 6414 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 238628793 is about 15447.6144760283. The cubic root of 238628793 is about 620.2607236779.

The spelling of 238628793 in words is "two hundred thirty-eight million, six hundred twenty-eight thousand, seven hundred ninety-three".