224440428 has 12 divisors (see below), whose sum is σ = 523694360. Its totient is φ = 74813472.

The previous prime is 224440427. The next prime is 224440429. The reversal of 224440428 is 824044422.

It is an interprime number because it is at equal distance from previous prime (224440427) and next prime (224440429).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 224440395 and 224440404.

It is not an unprimeable number, because it can be changed into a prime (224440421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9351673 + ... + 9351696.

Almost surely, 2^224440428 is an apocalyptic number.

It is an amenable number.

224440428 is an abundant number, since it is smaller than the sum of its proper divisors (299253932).

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

224440428 is a wasteful number, since it uses less digits than its factorization.

224440428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18703376 (or 18703374 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 30.

The square root of 224440428 is about 14981.3359884891. The cubic root of 224440428 is about 607.7155691473.

The spelling of 224440428 in words is "two hundred twenty-four million, four hundred forty thousand, four hundred twenty-eight".