14391028 has 12 divisors (see below), whose sum is σ = 25369092. Its totient is φ = 7142720.

The previous prime is 14391019. The next prime is 14391029. The reversal of 14391028 is 82019341.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3020644 + 11370384 = 1738^2 + 3372^2 .

It is a junction number, because it is equal to n+sod(n) for n = 14390987 and 14391005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14391029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12583 + ... + 13678.

It is an arithmetic number, because the mean of its divisors is an integer number (2114091).

Almost surely, 2^14391028 is an apocalyptic number.

It is an amenable number.

14391028 is a deficient number, since it is larger than the sum of its proper divisors (10978064).

14391028 is a wasteful number, since it uses less digits than its factorization.

14391028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26402 (or 26400 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 14391028 is about 3793.5508432075. The cubic root of 14391028 is about 243.2375419956.

The spelling of 14391028 in words is "fourteen million, three hundred ninety-one thousand, twenty-eight".