1336430729 has 4 divisors (see below), whose sum is σ = 1336771584. Its totient is φ = 1336089876.

The previous prime is 1336430723. The next prime is 1336430743. The reversal of 1336430729 is 9270346331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1336430729 - 2²⁴ = 1319653513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1336430692 and 1336430701.

It is not an unprimeable number, because it can be changed into a prime (1336430723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164477 + ... + 172410.

It is an arithmetic number, because the mean of its divisors is an integer number (334192896).

Almost surely, 2^1336430729 is an apocalyptic number.

It is an amenable number.

1336430729 is a deficient number, since it is larger than the sum of its proper divisors (340855).

1336430729 is an equidigital number, since it uses as much as digits as its factorization.

1336430729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340854.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 1336430729 is about 36557.2254007330. The cubic root of 1336430729 is about 1101.4940384483.

The spelling of 1336430729 in words is "one billion, three hundred thirty-six million, four hundred thirty thousand, seven hundred twenty-nine".