238690043 has 4 divisors (see below), whose sum is σ = 239114568. Its totient is φ = 238265520.

The previous prime is 238689973. The next prime is 238690051. The reversal of 238690043 is 340096832.

It is a happy number.

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 238690043 - 2²⁴ = 221912827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238689985 and 238690012.

It is not an unprimeable number, because it can be changed into a prime (238690063) 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, 211418 + ... + 212543.

It is an arithmetic number, because the mean of its divisors is an integer number (59778642).

Almost surely, 2^238690043 is an apocalyptic number.

238690043 is a deficient number, since it is larger than the sum of its proper divisors (424525).

238690043 is an equidigital number, since it uses as much as digits as its factorization.

238690043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424524.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 238690043 is about 15449.5968555817. The cubic root of 238690043 is about 620.3137875725.

It can be divided in two parts, 2386 and 90043, that added together give a palindrome (92429).

The spelling of 238690043 in words is "two hundred thirty-eight million, six hundred ninety thousand, forty-three".