238925919 has 4 divisors (see below), whose sum is σ = 318567896. Its totient is φ = 159283944.

The previous prime is 238925887. The next prime is 238925927. The reversal of 238925919 is 919529832.

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

It is not a de Polignac number, because 238925919 - 2⁵ = 238925887 is a prime.

It is a super-2 number, since 2×238925919² = 114171189539989122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238925419) 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, 39820984 + ... + 39820989.

It is an arithmetic number, because the mean of its divisors is an integer number (79641974).

Almost surely, 2^238925919 is an apocalyptic number.

238925919 is a deficient number, since it is larger than the sum of its proper divisors (79641977).

238925919 is an equidigital number, since it uses as much as digits as its factorization.

238925919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79641976.

The product of its digits is 349920, while the sum is 48.

The square root of 238925919 is about 15457.2286972795. The cubic root of 238925919 is about 620.5180538281.

The spelling of 238925919 in words is "two hundred thirty-eight million, nine hundred twenty-five thousand, nine hundred nineteen".