238194431 has 8 divisors (see below), whose sum is σ = 252537600. Its totient is φ = 224031960.

The previous prime is 238194413. The next prime is 238194433. The reversal of 238194431 is 134491832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 238194431 - 2⁶ = 238194367 is a prime.

It is a super-2 number, since 2×238194431² = 113473173918827522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238194391 and 238194400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238194433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42455 + ... + 47736.

It is an arithmetic number, because the mean of its divisors is an integer number (31567200).

Almost surely, 2^238194431 is an apocalyptic number.

238194431 is a deficient number, since it is larger than the sum of its proper divisors (14343169).

238194431 is a wasteful number, since it uses less digits than its factorization.

238194431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90349.

The product of its digits is 20736, while the sum is 35.

The square root of 238194431 is about 15433.5488789844. The cubic root of 238194431 is about 619.8841536938.

The spelling of 238194431 in words is "two hundred thirty-eight million, one hundred ninety-four thousand, four hundred thirty-one".