224520420 has 48 divisors (see below), whose sum is σ = 631306368. Its totient is φ = 59619840.

The previous prime is 224520419. The next prime is 224520421. The reversal of 224520420 is 24025422.

224520420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (224520419) and next prime (224520421).

It is not an unprimeable number, because it can be changed into a prime (224520421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6697 + ... + 22223.

It is an arithmetic number, because the mean of its divisors is an integer number (13152216).

Almost surely, 2^224520420 is an apocalyptic number.

224520420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224520420 is an abundant number, since it is smaller than the sum of its proper divisors (406785948).

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

224520420 is a wasteful number, since it uses less digits than its factorization.

224520420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15780 (or 15778 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 224520420 is about 14984.0054725030. The cubic root of 224520420 is about 607.7877584733.

Adding to 224520420 its reverse (24025422), we get a palindrome (248545842).

The spelling of 224520420 in words is "two hundred twenty-four million, five hundred twenty thousand, four hundred twenty".