224428401 has 20 divisors (see below), whose sum is σ = 335865024. Its totient is φ = 149347800.

The previous prime is 224428397. The next prime is 224428403. The reversal of 224428401 is 104824422.

It is not a de Polignac number, because 224428401 - 2² = 224428397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (224428403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 48916 + ... + 53306.

Almost surely, 2^224428401 is an apocalyptic number.

It is an amenable number.

224428401 is a deficient number, since it is larger than the sum of its proper divisors (111436623).

224428401 is an equidigital number, since it uses as much as digits as its factorization.

224428401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5034 (or 5025 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 224428401 is about 14980.9345836633. The cubic root of 224428401 is about 607.7047138158.

The spelling of 224428401 in words is "two hundred twenty-four million, four hundred twenty-eight thousand, four hundred one".