1381598298 has 12 divisors (see below), whose sum is σ = 2993463018. Its totient is φ = 460532760.

The previous prime is 1381598261. The next prime is 1381598321. The reversal of 1381598298 is 8928951831.

It can be written as a sum of positive squares in only one way, i.e., 1228011849 + 153586449 = 35043^2 + 12393^2 .

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, 38377713 + ... + 38377748.

Almost surely, 2^1381598298 is an apocalyptic number.

1381598298 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1381598298 is an abundant number, since it is smaller than the sum of its proper divisors (1611864720).

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

1381598298 is a wasteful number, since it uses less digits than its factorization.

1381598298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76755469 (or 76755466 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 54.

The square root of 1381598298 is about 37169.8573847143. The cubic root of 1381598298 is about 1113.7659328779.

The spelling of 1381598298 in words is "one billion, three hundred eighty-one million, five hundred ninety-eight thousand, two hundred ninety-eight".