14001428 has 24 divisors (see below), whose sum is σ = 28285824. Its totient is φ = 5940000.

The previous prime is 14001419. The next prime is 14001431. The reversal of 14001428 is 82410041.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

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, 353 + ... + 5303.

It is an arithmetic number, because the mean of its divisors is an integer number (1178576).

Almost surely, 2^14001428 is an apocalyptic number.

It is an amenable number.

14001428 is an abundant number, since it is smaller than the sum of its proper divisors (14284396).

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

14001428 is a wasteful number, since it uses less digits than its factorization.

14001428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063 (or 5061 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 14001428 is about 3741.8482064349. The cubic root of 14001428 is about 241.0224206226.

Adding to 14001428 its reverse (82410041), we get a palindrome (96411469).

The spelling of 14001428 in words is "fourteen million, one thousand, four hundred twenty-eight".