1329677449 has 4 divisors (see below), whose sum is σ = 1387489536. Its totient is φ = 1271865364.

The previous prime is 1329677429. The next prime is 1329677467. The reversal of 1329677449 is 9447769231.

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 1329677449 - 2²¹ = 1327580297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1329677396 and 1329677405.

It is not an unprimeable number, because it can be changed into a prime (1329677429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28906009 + ... + 28906054.

It is an arithmetic number, because the mean of its divisors is an integer number (346872384).

Almost surely, 2^1329677449 is an apocalyptic number.

It is an amenable number.

1329677449 is a deficient number, since it is larger than the sum of its proper divisors (57812087).

1329677449 is an equidigital number, since it uses as much as digits as its factorization.

1329677449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57812086.

The product of its digits is 2286144, while the sum is 52.

The square root of 1329677449 is about 36464.7425467396. The cubic root of 1329677449 is about 1099.6355401394.

The spelling of 1329677449 in words is "one billion, three hundred twenty-nine million, six hundred seventy-seven thousand, four hundred forty-nine".