14220780 has 96 divisors (see below), whose sum is σ = 46502400. Its totient is φ = 3245760.

The previous prime is 14220779. The next prime is 14220781. The reversal of 14220780 is 8702241.

It is an interprime number because it is at equal distance from previous prime (14220779) and next prime (14220781).

It is a self number, because there is not a number n which added to its sum of digits gives 14220780.

It is not an unprimeable number, because it can be changed into a prime (14220781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20235 + ... + 20925.

It is an arithmetic number, because the mean of its divisors is an integer number (484400).

Almost surely, 2^14220780 is an apocalyptic number.

14220780 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 14220780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23251200).

14220780 is an abundant number, since it is smaller than the sum of its proper divisors (32281620).

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

14220780 is a wasteful number, since it uses less digits than its factorization.

14220780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 14220780 is about 3771.0449480217. The cubic root of 14220780 is about 242.2745557725.

The spelling of 14220780 in words is "fourteen million, two hundred twenty thousand, seven hundred eighty".