1306973950 has 24 divisors (see below), whose sum is σ = 2509392960. Its totient is φ = 505924800.

The previous prime is 1306973929. The next prime is 1306973963. The reversal of 1306973950 is 593796031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1306973897 and 1306973906.

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, 420055 + ... + 423154.

It is an arithmetic number, because the mean of its divisors is an integer number (104558040).

Almost surely, 2^1306973950 is an apocalyptic number.

1306973950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1306973950 is a deficient number, since it is larger than the sum of its proper divisors (1202419010).

1306973950 is a wasteful number, since it uses less digits than its factorization.

1306973950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843252 (or 843247 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 43.

The square root of 1306973950 is about 36152.0946834343. The cubic root of 1306973950 is about 1093.3410239106.

The spelling of 1306973950 in words is "one billion, three hundred six million, nine hundred seventy-three thousand, nine hundred fifty".