13280949 has 32 divisors (see below), whose sum is σ = 21732480. Its totient is φ = 7948800.

The previous prime is 13280933. The next prime is 13280951. The reversal of 13280949 is 94908231.

It is not a de Polignac number, because 13280949 - 2⁴ = 13280933 is a prime.

It is a super-4 number, since 4×13280949⁴ (a number of 30 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13280149) 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 31 ways as a sum of consecutive naturals, for example, 28579 + ... + 29039.

It is an arithmetic number, because the mean of its divisors is an integer number (679140).

Almost surely, 2^13280949 is an apocalyptic number.

It is an amenable number.

13280949 is a deficient number, since it is larger than the sum of its proper divisors (8451531).

13280949 is a wasteful number, since it uses less digits than its factorization.

13280949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 13280949 is about 3644.3036371850. The cubic root of 13280949 is about 236.8152702462.

The spelling of 13280949 in words is "thirteen million, two hundred eighty thousand, nine hundred forty-nine".