14187428 has 24 divisors (see below), whose sum is σ = 25666872. Its totient is φ = 6856704.

The previous prime is 14187427. The next prime is 14187443. The reversal of 14187428 is 82478141.

It can be written as a sum of positive squares in 4 ways, for example, as 9684544 + 4502884 = 3112^2 + 2122^2 .

It is a super-2 number, since 2×14187428² = 402566226510368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14187427) 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 7 ways as a sum of consecutive naturals, for example, 37850 + ... + 38222.

It is an arithmetic number, because the mean of its divisors is an integer number (1069453).

Almost surely, 2^14187428 is an apocalyptic number.

It is an amenable number.

14187428 is a deficient number, since it is larger than the sum of its proper divisors (11479444).

14187428 is a wasteful number, since it uses less digits than its factorization.

14187428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 669 counting only the distinct ones).

The product of its digits is 14336, while the sum is 35.

The square root of 14187428 is about 3766.6202357020. The cubic root of 14187428 is about 242.0850053126.

The spelling of 14187428 in words is "fourteen million, one hundred eighty-seven thousand, four hundred twenty-eight".