1306076042 has 4 divisors (see below), whose sum is σ = 1959114066. Its totient is φ = 653038020.

The previous prime is 1306076011. The next prime is 1306076087. The reversal of 1306076042 is 2406706031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 746327761 + 559748281 = 27319^2 + 23659^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1306075996 and 1306076014.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326519009 + ... + 326519012.

Almost surely, 2^1306076042 is an apocalyptic number.

1306076042 is a deficient number, since it is larger than the sum of its proper divisors (653038024).

1306076042 is an equidigital number, since it uses as much as digits as its factorization.

1306076042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653038023.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1306076042 is about 36139.6740715796. The cubic root of 1306076042 is about 1093.0905867447.

The spelling of 1306076042 in words is "one billion, three hundred six million, seventy-six thousand, forty-two".