1398391362 has 12 divisors (see below), whose sum is σ = 3029847990. Its totient is φ = 466130448.

The previous prime is 1398391349. The next prime is 1398391381. The reversal of 1398391362 is 2631938931.

It can be written as a sum of positive squares in only one way, i.e., 1177244721 + 221146641 = 34311^2 + 14871^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38844187 + ... + 38844222.

Almost surely, 2^1398391362 is an apocalyptic number.

1398391362 is an abundant number, since it is smaller than the sum of its proper divisors (1631456628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1398391362 is a wasteful number, since it uses less digits than its factorization.

1398391362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77688417 (or 77688414 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 1398391362 is about 37395.0713597394. The cubic root of 1398391362 is about 1118.2603098832.

The spelling of 1398391362 in words is "one billion, three hundred ninety-eight million, three hundred ninety-one thousand, three hundred sixty-two".