14428890 has 96 divisors (see below), whose sum is σ = 44104320. Its totient is φ = 3203712.

The previous prime is 14428867. The next prime is 14428907. The reversal of 14428890 is 9882441.

It is a Curzon number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 23001 + ... + 23619.

It is an arithmetic number, because the mean of its divisors is an integer number (459420).

Almost surely, 2^14428890 is an apocalyptic number.

14428890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 14428890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22052160).

14428890 is an abundant number, since it is smaller than the sum of its proper divisors (29675430).

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

14428890 is a wasteful number, since it uses less digits than its factorization.

14428890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 14428890 is about 3798.5378766046. The cubic root of 14428890 is about 243.4506700425.

The spelling of 14428890 in words is "fourteen million, four hundred twenty-eight thousand, eight hundred ninety".