1381830776 has 16 divisors (see below), whose sum is σ = 2591573400. Its totient is φ = 690744544.

The previous prime is 1381830767. The next prime is 1381830809. The reversal of 1381830776 is 6770381831.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 17090 + ... + 55278.

Almost surely, 2^1381830776 is an apocalyptic number.

It is an amenable number.

1381830776 is a deficient number, since it is larger than the sum of its proper divisors (1209742624).

1381830776 is a wasteful number, since it uses less digits than its factorization.

1381830776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42718 (or 42714 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 1381830776 is about 37172.9844914287. The cubic root of 1381830776 is about 1113.8283995528.

The spelling of 1381830776 in words is "one billion, three hundred eighty-one million, eight hundred thirty thousand, seven hundred seventy-six".