239218990 has 8 divisors (see below), whose sum is σ = 430594200. Its totient is φ = 95687592.

The previous prime is 239218979. The next prime is 239218997. The reversal of 239218990 is 99812932.

239218990 is digitally balanced in base 3, 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239218997) 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, 11960940 + ... + 11960959.

It is an arithmetic number, because the mean of its divisors is an integer number (53824275).

Almost surely, 2^239218990 is an apocalyptic number.

239218990 is a deficient number, since it is larger than the sum of its proper divisors (191375210).

239218990 is a wasteful number, since it uses less digits than its factorization.

239218990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23921906.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 239218990 is about 15466.7058548354. The cubic root of 239218990 is about 620.7716631784.

The spelling of 239218990 in words is "two hundred thirty-nine million, two hundred eighteen thousand, nine hundred ninety".