224920861 has 8 divisors (see below), whose sum is σ = 246155904. Its totient is φ = 203817120.

The previous prime is 224920859. The next prime is 224920867. The reversal of 224920861 is 168029422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 224920861 - 2¹ = 224920859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224920867) 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, 29221 + ... + 36106.

It is an arithmetic number, because the mean of its divisors is an integer number (30769488).

Almost surely, 2^224920861 is an apocalyptic number.

It is an amenable number.

224920861 is a deficient number, since it is larger than the sum of its proper divisors (21235043).

224920861 is a wasteful number, since it uses less digits than its factorization.

224920861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65651.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 224920861 is about 14997.3618013303. The cubic root of 224920861 is about 608.1488816568.

The spelling of 224920861 in words is "two hundred twenty-four million, nine hundred twenty thousand, eight hundred sixty-one".