1336691409 has 16 divisors (see below), whose sum is σ = 1794312000. Its totient is φ = 885118976.

The previous prime is 1336691407. The next prime is 1336691423. The reversal of 1336691409 is 9041966331.

1336691409 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1336691409 - 2¹ = 1336691407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1336691407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311722 + ... + 315980.

It is an arithmetic number, because the mean of its divisors is an integer number (112144500).

Almost surely, 2^1336691409 is an apocalyptic number.

It is an amenable number.

1336691409 is a deficient number, since it is larger than the sum of its proper divisors (457620591).

1336691409 is a wasteful number, since it uses less digits than its factorization.

1336691409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4944.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 1336691409 is about 36560.7905959376. The cubic root of 1336691409 is about 1101.5656517868.

The spelling of 1336691409 in words is "one billion, three hundred thirty-six million, six hundred ninety-one thousand, four hundred nine".