238320427 has 4 divisors (see below), whose sum is σ = 238459680. Its totient is φ = 238181176.

The previous prime is 238320419. The next prime is 238320437. The reversal of 238320427 is 724023832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 238320427 - 2³ = 238320419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238320437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67027 + ... + 70492.

It is an arithmetic number, because the mean of its divisors is an integer number (59614920).

Almost surely, 2^238320427 is an apocalyptic number.

238320427 is a deficient number, since it is larger than the sum of its proper divisors (139253).

238320427 is a wasteful number, since it uses less digits than its factorization.

238320427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139252.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 238320427 is about 15437.6302261714. The cubic root of 238320427 is about 619.9934329863.

The spelling of 238320427 in words is "two hundred thirty-eight million, three hundred twenty thousand, four hundred twenty-seven".