224005720 has 16 divisors (see below), whose sum is σ = 504012960. Its totient is φ = 89602272.

The previous prime is 224005711. The next prime is 224005741. The reversal of 224005720 is 27500422.

It is a junction number, because it is equal to n+sod(n) for n = 224005691 and 224005700.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2800032 + ... + 2800111.

It is an arithmetic number, because the mean of its divisors is an integer number (31500810).

Almost surely, 2^224005720 is an apocalyptic number.

224005720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224005720 is an abundant number, since it is smaller than the sum of its proper divisors (280007240).

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

224005720 is a wasteful number, since it uses less digits than its factorization.

224005720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5600154 (or 5600150 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 224005720 is about 14966.8206376638. The cubic root of 224005720 is about 607.3229637624.

The spelling of 224005720 in words is "two hundred twenty-four million, five thousand, seven hundred twenty".