224718740 has 48 divisors (see below), whose sum is σ = 495331200. Its totient is φ = 85472640.

The previous prime is 224718691. The next prime is 224718749. The reversal of 224718740 is 47817422.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 224718740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224718749) 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, 81911 + ... + 84609.

It is an arithmetic number, because the mean of its divisors is an integer number (10319400).

Almost surely, 2^224718740 is an apocalyptic number.

224718740 is a gapful number since it is divisible by the number (20) 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 224718740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247665600).

224718740 is an abundant number, since it is smaller than the sum of its proper divisors (270612460).

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

224718740 is a wasteful number, since it uses less digits than its factorization.

224718740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912 (or 2910 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 224718740 is about 14990.6217349381. The cubic root of 224718740 is about 607.9666597888.

The spelling of 224718740 in words is "two hundred twenty-four million, seven hundred eighteen thousand, seven hundred forty".