1306376920 has 64 divisors (see below), whose sum is σ = 3200796000. Its totient is φ = 477969408.

The previous prime is 1306376899. The next prime is 1306376963. The reversal of 1306376920 is 296736031.

It is a self number, because there is not a number n which added to its sum of digits gives 1306376920.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7597 + ... + 51676.

Almost surely, 2^1306376920 is an apocalyptic number.

1306376920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306376920 is an abundant number, since it is smaller than the sum of its proper divisors (1894419080).

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

1306376920 is a wasteful number, since it uses less digits than its factorization.

1306376920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59332 (or 59328 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 1306376920 is about 36143.8365423484. The cubic root of 1306376920 is about 1093.1745179624.

The spelling of 1306376920 in words is "one billion, three hundred six million, three hundred seventy-six thousand, nine hundred twenty".