13449740 has 24 divisors (see below), whose sum is σ = 28523040. Its totient is φ = 5326848.

The previous prime is 13449727. The next prime is 13449749. The reversal of 13449740 is 4794431.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13449697 and 13449706.

It is not an unprimeable number, because it can be changed into a prime (13449749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1205 + ... + 5324.

It is an arithmetic number, because the mean of its divisors is an integer number (1188460).

Almost surely, 2^13449740 is an apocalyptic number.

13449740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13449740 is an abundant number, since it is smaller than the sum of its proper divisors (15073300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13449740 is a wasteful number, since it uses less digits than its factorization.

13449740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641 (or 6639 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 13449740 is about 3667.3887167847. The cubic root of 13449740 is about 237.8142985671.

The spelling of 13449740 in words is "thirteen million, four hundred forty-nine thousand, seven hundred forty".