1398582098 has 4 divisors (see below), whose sum is σ = 2097873150. Its totient is φ = 699291048.

The previous prime is 1398582089. The next prime is 1398582139. The reversal of 1398582098 is 8902858931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8902858931 = 463 ⋅19228637.

It can be written as a sum of positive squares in only one way, i.e., 844309249 + 554272849 = 29057^2 + 23543^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349645523 + ... + 349645526.

Almost surely, 2^1398582098 is an apocalyptic number.

1398582098 is a deficient number, since it is larger than the sum of its proper divisors (699291052).

1398582098 is an equidigital number, since it uses as much as digits as its factorization.

1398582098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699291051.

The product of its (nonzero) digits is 1244160, while the sum is 53.

The square root of 1398582098 is about 37397.6215553877. The cubic root of 1398582098 is about 1118.3111499192.

The spelling of 1398582098 in words is "one billion, three hundred ninety-eight million, five hundred eighty-two thousand, ninety-eight".