1306879926 has 48 divisors (see below), whose sum is σ = 3009400128. Its totient is φ = 375174000.

The previous prime is 1306879901. The next prime is 1306879969. The reversal of 1306879926 is 6299786031.

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 23 ways as a sum of consecutive naturals, for example, 3600 + ... + 51251.

It is an arithmetic number, because the mean of its divisors is an integer number (62695836).

Almost surely, 2^1306879926 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1306879926, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1504700064).

1306879926 is an abundant number, since it is smaller than the sum of its proper divisors (1702520202).

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

1306879926 is a wasteful number, since it uses less digits than its factorization.

1306879926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54905 (or 54886 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 1306879926 is about 36150.7942651334. The cubic root of 1306879926 is about 1093.3148048822.

The spelling of 1306879926 in words is "one billion, three hundred six million, eight hundred seventy-nine thousand, nine hundred twenty-six".