224855220 has 24 divisors (see below), whose sum is σ = 629594784. Its totient is φ = 59961376.

The previous prime is 224855201. The next prime is 224855221. The reversal of 224855220 is 22558422.

It is a super-2 number, since 2×224855220² = 101119739922496800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224855221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1873734 + ... + 1873853.

It is an arithmetic number, because the mean of its divisors is an integer number (26233116).

Almost surely, 2^224855220 is an apocalyptic number.

224855220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224855220 is an abundant number, since it is smaller than the sum of its proper divisors (404739564).

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

224855220 is a wasteful number, since it uses less digits than its factorization.

224855220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3747599 (or 3747597 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 224855220 is about 14995.1732234076. The cubic root of 224855220 is about 608.0897150911.

The spelling of 224855220 in words is "two hundred twenty-four million, eight hundred fifty-five thousand, two hundred twenty".