14722890 has 64 divisors (see below), whose sum is σ = 43497216. Its totient is φ = 3105792.

The previous prime is 14722889. The next prime is 14722909. The reversal of 14722890 is 9822741.

It is a happy number.

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 34 + ... + 5426.

It is an arithmetic number, because the mean of its divisors is an integer number (679644).

Almost surely, 2^14722890 is an apocalyptic number.

14722890 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 14722890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21748608).

14722890 is an abundant number, since it is smaller than the sum of its proper divisors (28774326).

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

14722890 is a wasteful number, since it uses less digits than its factorization.

14722890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5423.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 14722890 is about 3837.0418293263. The cubic root of 14722890 is about 245.0930647415.

The spelling of 14722890 in words is "fourteen million, seven hundred twenty-two thousand, eight hundred ninety".