224146720 has 48 divisors (see below), whose sum is σ = 605199168. Its totient is φ = 76849920.

The previous prime is 224146711. The next prime is 224146721. The reversal of 224146720 is 27641422.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (224146721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98946 + ... + 101185.

It is an arithmetic number, because the mean of its divisors is an integer number (12608316).

Almost surely, 2^224146720 is an apocalyptic number.

224146720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224146720 is an abundant number, since it is smaller than the sum of its proper divisors (381052448).

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

224146720 is a wasteful number, since it uses less digits than its factorization.

224146720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200153 (or 200145 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 224146720 is about 14971.5303159029. The cubic root of 224146720 is about 607.4503631536.

The spelling of 224146720 in words is "two hundred twenty-four million, one hundred forty-six thousand, seven hundred twenty".