1349413809 has 16 divisors (see below), whose sum is σ = 1810808832. Its totient is φ = 893830608.

The previous prime is 1349413789. The next prime is 1349413829. The reversal of 1349413809 is 9083149431.

It is an interprime number because it is at equal distance from previous prime (1349413789) and next prime (1349413829).

It is not a de Polignac number, because 1349413809 - 2¹⁵ = 1349381041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1349413829) 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, 404422 + ... + 407744.

It is an arithmetic number, because the mean of its divisors is an integer number (113175552).

Almost surely, 2^1349413809 is an apocalyptic number.

It is an amenable number.

1349413809 is a deficient number, since it is larger than the sum of its proper divisors (461395023).

1349413809 is a wasteful number, since it uses less digits than its factorization.

1349413809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4156.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 1349413809 is about 36734.3682264987. The cubic root of 1349413809 is about 1105.0494600548.

The spelling of 1349413809 in words is "one billion, three hundred forty-nine million, four hundred thirteen thousand, eight hundred nine".