224240881 has 2 divisors, whose sum is σ = 224240882. Its totient is φ = 224240880.

The previous prime is 224240857. The next prime is 224240899. The reversal of 224240881 is 188042422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133610481 + 90630400 = 11559^2 + 9520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224240881 is a prime.

It is a super-2 number, since 2×224240881² = 100567945423312322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (224240581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112120440 + 112120441.

It is an arithmetic number, because the mean of its divisors is an integer number (112120441).

Almost surely, 2^224240881 is an apocalyptic number.

It is an amenable number.

224240881 is a deficient number, since it is larger than the sum of its proper divisors (1).

224240881 is an equidigital number, since it uses as much as digits as its factorization.

224240881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8192, while the sum is 31.

The square root of 224240881 is about 14974.6746542287. The cubic root of 224240881 is about 607.5354118011.

The spelling of 224240881 in words is "two hundred twenty-four million, two hundred forty thousand, eight hundred eighty-one".