224446428 has 36 divisors (see below), whose sum is σ = 586917240. Its totient is φ = 72235296.

The previous prime is 224446421. The next prime is 224446447. The reversal of 224446428 is 824644422.

It is a happy number.

224446428 is a `hidden beast` number, since 2 + 2 + 4 + 4 + 4 + 642 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 224446392 and 224446401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224446421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106450 + ... + 108537.

Almost surely, 2^224446428 is an apocalyptic number.

It is an amenable number.

224446428 is an abundant number, since it is smaller than the sum of its proper divisors (362470812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

224446428 is a wasteful number, since it uses less digits than its factorization.

224446428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215026 (or 215021 counting only the distinct ones).

The product of its digits is 98304, while the sum is 36.

The square root of 224446428 is about 14981.5362363144. The cubic root of 224446428 is about 607.7209844832.

The spelling of 224446428 in words is "two hundred twenty-four million, four hundred forty-six thousand, four hundred twenty-eight".