13424738 has 8 divisors (see below), whose sum is σ = 20831580. Its totient is φ = 6480880.

The previous prime is 13424737. The next prime is 13424743. The reversal of 13424738 is 83742431.

It can be written as a sum of positive squares in 2 ways, for example, as 11539609 + 1885129 = 3397^2 + 1373^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13424731) 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 3 ways as a sum of consecutive naturals, for example, 115673 + ... + 115788.

Almost surely, 2^13424738 is an apocalyptic number.

13424738 is a deficient number, since it is larger than the sum of its proper divisors (7406842).

13424738 is a wasteful number, since it uses less digits than its factorization.

13424738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231492.

The product of its digits is 16128, while the sum is 32.

The square root of 13424738 is about 3663.9784388012. The cubic root of 13424738 is about 237.6668478560. Note that the first 3 decimals are identical.

The spelling of 13424738 in words is "thirteen million, four hundred twenty-four thousand, seven hundred thirty-eight".