14721000 has 128 divisors (see below), whose sum is σ = 52565760. Its totient is φ = 3360000.

The previous prime is 14720983. The next prime is 14721013. The reversal of 14721000 is 12741.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 31 ways as a sum of consecutive naturals, for example, 20650 + ... + 21350.

It is an arithmetic number, because the mean of its divisors is an integer number (410670).

Almost surely, 2^14721000 is an apocalyptic number.

14721000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14721000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26282880).

14721000 is an abundant number, since it is smaller than the sum of its proper divisors (37844760).

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

14721000 is a wasteful number, since it uses less digits than its factorization.

14721000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 14721000 is about 3836.7955379457. The cubic root of 14721000 is about 245.0825766350.

Adding to 14721000 its reverse (12741), we get a palindrome (14733741).

The spelling of 14721000 in words is "fourteen million, seven hundred twenty-one thousand".