238320919 has 2 divisors, whose sum is σ = 238320920. Its totient is φ = 238320918.

The previous prime is 238320911. The next prime is 238320931. The reversal of 238320919 is 919023832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238320919 - 2³ = 238320911 is a prime.

It is a super-2 number, since 2×238320919² = 113593720866009122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238320911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119160459 + 119160460.

It is an arithmetic number, because the mean of its divisors is an integer number (119160460).

Almost surely, 2^238320919 is an apocalyptic number.

238320919 is a deficient number, since it is larger than the sum of its proper divisors (1).

238320919 is an equidigital number, since it uses as much as digits as its factorization.

238320919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 238320919 is about 15437.6461612514. The cubic root of 238320919 is about 619.9938596339.

The spelling of 238320919 in words is "two hundred thirty-eight million, three hundred twenty thousand, nine hundred nineteen".