1306780246 has 8 divisors (see below), whose sum is σ = 1960324704. Its totient is φ = 653338680.

The previous prime is 1306780229. The next prime is 1306780253. The reversal of 1306780246 is 6420876031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1306780246² = 3415349222671641032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31411 + ... + 60001.

It is an arithmetic number, because the mean of its divisors is an integer number (245040588).

Almost surely, 2^1306780246 is an apocalyptic number.

1306780246 is a deficient number, since it is larger than the sum of its proper divisors (653544458).

1306780246 is a wasteful number, since it uses less digits than its factorization.

1306780246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51446.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 1306780246 is about 36149.4155692730. The cubic root of 1306780246 is about 1093.2870072785.

The spelling of 1306780246 in words is "one billion, three hundred six million, seven hundred eighty thousand, two hundred forty-six".