13049649 has 12 divisors (see below), whose sum is σ = 18914896. Its totient is φ = 8669592.

The previous prime is 13049633. The next prime is 13049653. The reversal of 13049649 is 94694031.

13049649 is a `hidden beast` number, since 1 + 3 + 0 + 4 + 9 + 649 = 666.

It is not a de Polignac number, because 13049649 - 2⁴ = 13049633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13049609) 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 11 ways as a sum of consecutive naturals, for example, 402 + ... + 5124.

Almost surely, 2^13049649 is an apocalyptic number.

It is an amenable number.

13049649 is a deficient number, since it is larger than the sum of its proper divisors (5865247).

13049649 is a wasteful number, since it uses less digits than its factorization.

13049649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036 (or 5033 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 13049649 is about 3612.4297917053. The cubic root of 13049649 is about 235.4324254711.

The spelling of 13049649 in words is "thirteen million, forty-nine thousand, six hundred forty-nine".