819880238 has 8 divisors (see below), whose sum is σ = 1230336432. Its totient is φ = 409768096.

The previous prime is 819880213. The next prime is 819880247. The reversal of 819880238 is 832088918.

819880238 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 a junction number, because it is equal to n+sod(n) for n = 819880192 and 819880201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79970 + ... + 89637.

It is an arithmetic number, because the mean of its divisors is an integer number (153792054).

Almost surely, 2^819880238 is an apocalyptic number.

819880238 is a deficient number, since it is larger than the sum of its proper divisors (410456194).

819880238 is a wasteful number, since it uses less digits than its factorization.

819880238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172026.

The product of its (nonzero) digits is 221184, while the sum is 47.

The square root of 819880238 is about 28633.5509149669. The cubic root of 819880238 is about 935.9445925940.

The spelling of 819880238 in words is "eight hundred nineteen million, eight hundred eighty thousand, two hundred thirty-eight".