1376730684 has 36 divisors (see below), whose sum is σ = 3977222704. Its totient is φ = 393351552.

The previous prime is 1376730679. The next prime is 1376730701. The reversal of 1376730684 is 4860376731.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2731357 + ... + 2731860.

Almost surely, 2^1376730684 is an apocalyptic number.

1376730684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1376730684 is an abundant number, since it is smaller than the sum of its proper divisors (2600492020).

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

1376730684 is a wasteful number, since it uses less digits than its factorization.

1376730684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5463234 (or 5463229 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 1376730684 is about 37104.3216350872. The cubic root of 1376730684 is about 1112.4563959512.

The spelling of 1376730684 in words is "one billion, three hundred seventy-six million, seven hundred thirty thousand, six hundred eighty-four".