238780791 has 24 divisors (see below), whose sum is σ = 362019840. Its totient is φ = 157255992.

The previous prime is 238780781. The next prime is 238780807. The reversal of 238780791 is 197087832.

It is not a de Polignac number, because 238780791 - 2¹⁵ = 238748023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238780781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14250 + ... + 26088.

It is an arithmetic number, because the mean of its divisors is an integer number (15084160).

Almost surely, 2^238780791 is an apocalyptic number.

238780791 is a deficient number, since it is larger than the sum of its proper divisors (123239049).

238780791 is an equidigital number, since it uses as much as digits as its factorization.

238780791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11937 (or 11925 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 238780791 is about 15452.5334816010. The cubic root of 238780791 is about 620.3923903530.

The spelling of 238780791 in words is "two hundred thirty-eight million, seven hundred eighty thousand, seven hundred ninety-one".