238330431 has 40 divisors (see below), whose sum is σ = 368244624. Its totient is φ = 153498240.

The previous prime is 238330399. The next prime is 238330451. The reversal of 238330431 is 134033832.

It is not a de Polignac number, because 238330431 - 2⁵ = 238330399 is a prime.

It is a super-2 number, since 2×238330431² = 113602788681291522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 238330395 and 238330404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238330451) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 842016 + ... + 842298.

Almost surely, 2^238330431 is an apocalyptic number.

238330431 is a deficient number, since it is larger than the sum of its proper divisors (129914193).

238330431 is a wasteful number, since it uses less digits than its factorization.

238330431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 238330431 is about 15437.9542362322. The cubic root of 238330431 is about 620.0021080400.

The spelling of 238330431 in words is "two hundred thirty-eight million, three hundred thirty thousand, four hundred thirty-one".