14721918 has 8 divisors (see below), whose sum is σ = 29443848. Its totient is φ = 4907304.

The previous prime is 14721901. The next prime is 14721919. The reversal of 14721918 is 81912741.

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

14721918 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14721919) 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 3 ways as a sum of consecutive naturals, for example, 1226821 + ... + 1226832.

It is an arithmetic number, because the mean of its divisors is an integer number (3680481).

Almost surely, 2^14721918 is an apocalyptic number.

14721918 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

14721918 is a wasteful number, since it uses less digits than its factorization.

14721918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453658.

The product of its digits is 4032, while the sum is 33.

The square root of 14721918 is about 3836.9151671623. The cubic root of 14721918 is about 245.0876709703.

The spelling of 14721918 in words is "fourteen million, seven hundred twenty-one thousand, nine hundred eighteen".