1381889314 has 16 divisors (see below), whose sum is σ = 2239473600. Its totient is φ = 635740560.

The previous prime is 1381889293. The next prime is 1381889321. The reversal of 1381889314 is 4139881831.

It is a happy number.

It is a super-2 number, since 2×1381889314² = 3819236152294781192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77364 + ... + 93535.

It is an arithmetic number, because the mean of its divisors is an integer number (139967100).

Almost surely, 2^1381889314 is an apocalyptic number.

1381889314 is a deficient number, since it is larger than the sum of its proper divisors (857584286).

1381889314 is a wasteful number, since it uses less digits than its factorization.

1381889314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171225.

The product of its digits is 165888, while the sum is 46.

The square root of 1381889314 is about 37173.7718559739. The cubic root of 1381889314 is about 1113.8441275679.

The spelling of 1381889314 in words is "one billion, three hundred eighty-one million, eight hundred eighty-nine thousand, three hundred fourteen".