238624989 has 8 divisors (see below), whose sum is σ = 322915680. Its totient is φ = 156708816.

The previous prime is 238624987. The next prime is 238625029. The reversal of 238624989 is 989426832.

238624989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 238624989 - 2¹ = 238624987 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238624987) 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, 593394 + ... + 593795.

It is an arithmetic number, because the mean of its divisors is an integer number (40364460).

Almost surely, 2^238624989 is an apocalyptic number.

It is an amenable number.

238624989 is a deficient number, since it is larger than the sum of its proper divisors (84290691).

238624989 is a wasteful number, since it uses less digits than its factorization.

238624989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187259.

The product of its digits is 1492992, while the sum is 51.

The square root of 238624989 is about 15447.4913497305. The cubic root of 238624989 is about 620.2574277857.

The spelling of 238624989 in words is "two hundred thirty-eight million, six hundred twenty-four thousand, nine hundred eighty-nine".