224947881 has 16 divisors (see below), whose sum is σ = 333699520. Its totient is φ = 149765760.

The previous prime is 224947823. The next prime is 224947883. The reversal of 224947881 is 188749422.

It is not a de Polignac number, because 224947881 - 2⁶ = 224947817 is a prime.

It is a super-2 number, since 2×224947881² = 101203098332780322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224947883) 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, 16761 + ... + 27033.

It is an arithmetic number, because the mean of its divisors is an integer number (20856220).

Almost surely, 2^224947881 is an apocalyptic number.

It is an amenable number.

224947881 is a deficient number, since it is larger than the sum of its proper divisors (108751639).

224947881 is a wasteful number, since it uses less digits than its factorization.

224947881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11093 (or 11087 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 224947881 is about 14998.2625993813. The cubic root of 224947881 is about 608.1732332217.

The spelling of 224947881 in words is "two hundred twenty-four million, nine hundred forty-seven thousand, eight hundred eighty-one".