224345140 has 48 divisors (see below), whose sum is σ = 494645760. Its totient is φ = 85357440.

The previous prime is 224345123. The next prime is 224345159. The reversal of 224345140 is 41543422.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33514 + ... + 39646.

It is an arithmetic number, because the mean of its divisors is an integer number (10305120).

Almost surely, 2^224345140 is an apocalyptic number.

224345140 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 224345140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247322880).

224345140 is an abundant number, since it is smaller than the sum of its proper divisors (270300620).

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

224345140 is a wasteful number, since it uses less digits than its factorization.

224345140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6232 (or 6230 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 224345140 is about 14978.1554271546. The cubic root of 224345140 is about 607.6295534523.

Adding to 224345140 its reverse (41543422), we get a palindrome (265888562).

The spelling of 224345140 in words is "two hundred twenty-four million, three hundred forty-five thousand, one hundred forty".