981789338 has 8 divisors (see below), whose sum is σ = 1559312532. Its totient is φ = 462018496.

The previous prime is 981789329. The next prime is 981789371. The reversal of 981789338 is 833987189.

981789338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 945993049 + 35796289 = 30757^2 + 5983^2 .

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

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, 14438045 + ... + 14438112.

Almost surely, 2^981789338 is an apocalyptic number.

981789338 is a deficient number, since it is larger than the sum of its proper divisors (577523194).

981789338 is a wasteful number, since it uses less digits than its factorization.

981789338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28876176.

The product of its digits is 2612736, while the sum is 56.

The square root of 981789338 is about 31333.5178044215. The cubic root of 981789338 is about 993.8925543790.

The spelling of 981789338 in words is "nine hundred eighty-one million, seven hundred eighty-nine thousand, three hundred thirty-eight".