1389471098 has 8 divisors (see below), whose sum is σ = 2206807092. Its totient is φ = 653868736.

The previous prime is 1389471079. The next prime is 1389471131. The reversal of 1389471098 is 8901749831.

It can be written as a sum of positive squares in 2 ways, for example, as 1265438329 + 124032769 = 35573^2 + 11137^2 .

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, 20433365 + ... + 20433432.

Almost surely, 2^1389471098 is an apocalyptic number.

1389471098 is a deficient number, since it is larger than the sum of its proper divisors (817335994).

1389471098 is a wasteful number, since it uses less digits than its factorization.

1389471098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40866816.

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 1389471098 is about 37275.6099614748. The cubic root of 1389471098 is about 1115.8774616765.

The spelling of 1389471098 in words is "one billion, three hundred eighty-nine million, four hundred seventy-one thousand, ninety-eight".