238045231 has 4 divisors (see below), whose sum is σ = 239643000. Its totient is φ = 236447464.

The previous prime is 238045219. The next prime is 238045259. The reversal of 238045231 is 132540832.

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 238045231 - 2⁷ = 238045103 is a prime.

It is a super-2 number, since 2×238045231² = 113331064003686722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 238045231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238045201) 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, 798661 + ... + 798958.

It is an arithmetic number, because the mean of its divisors is an integer number (59910750).

Almost surely, 2^238045231 is an apocalyptic number.

238045231 is a deficient number, since it is larger than the sum of its proper divisors (1597769).

238045231 is a wasteful number, since it uses less digits than its factorization.

238045231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597768.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 238045231 is about 15428.7144960298. The cubic root of 238045231 is about 619.7546991796.

The spelling of 238045231 in words is "two hundred thirty-eight million, forty-five thousand, two hundred thirty-one".