224391881 has 8 divisors (see below), whose sum is σ = 269945280. Its totient is φ = 182212848.

The previous prime is 224391847. The next prime is 224391901. The reversal of 224391881 is 188193422.

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 224391881 - 2¹⁰ = 224390857 is a prime.

It is a super-2 number, since 2×224391881² = 100703432517436322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (224391481) 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, 843446 + ... + 843711.

It is an arithmetic number, because the mean of its divisors is an integer number (33743160).

Almost surely, 2^224391881 is an apocalyptic number.

It is an amenable number.

224391881 is a deficient number, since it is larger than the sum of its proper divisors (45553399).

224391881 is a wasteful number, since it uses less digits than its factorization.

224391881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687183.

The product of its digits is 27648, while the sum is 38.

The square root of 224391881 is about 14979.7156515069. The cubic root of 224391881 is about 607.6717492119.

The spelling of 224391881 in words is "two hundred twenty-four million, three hundred ninety-one thousand, eight hundred eighty-one".