13449724 has 6 divisors (see below), whose sum is σ = 23537024. Its totient is φ = 6724860.

The previous prime is 13449697. The next prime is 13449727. The reversal of 13449724 is 42794431.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13449724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13449727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1681212 + ... + 1681219.

Almost surely, 2^13449724 is an apocalyptic number.

It is an amenable number.

13449724 is a deficient number, since it is larger than the sum of its proper divisors (10087300).

13449724 is a wasteful number, since it uses less digits than its factorization.

13449724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362435 (or 3362433 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 13449724 is about 3667.3865353955. The cubic root of 13449724 is about 237.8142042646.

The spelling of 13449724 in words is "thirteen million, four hundred forty-nine thousand, seven hundred twenty-four".