14553220 has 48 divisors (see below), whose sum is σ = 33784128. Its totient is φ = 5221760.

The previous prime is 14553211. The next prime is 14553251. The reversal of 14553220 is 2235541.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 14553191 and 14553200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17862 + ... + 18658.

It is an arithmetic number, because the mean of its divisors is an integer number (703836).

Almost surely, 2^14553220 is an apocalyptic number.

14553220 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 14553220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16892064).

14553220 is an abundant number, since it is smaller than the sum of its proper divisors (19230908).

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

14553220 is a wasteful number, since it uses less digits than its factorization.

14553220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900 (or 898 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 14553220 is about 3814.8682808191. The cubic root of 14553220 is about 244.1479215938.

Adding to 14553220 its reverse (2235541), we get a palindrome (16788761).

The spelling of 14553220 in words is "fourteen million, five hundred fifty-three thousand, two hundred twenty".