224004042 has 40 divisors (see below), whose sum is σ = 505648836. Its totient is φ = 74115648.

The previous prime is 224004041. The next prime is 224004043. The reversal of 224004042 is 240400422.

224004042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (224004041) and next prime (224004043).

It can be written as a sum of positive squares in 2 ways, for example, as 223472601 + 531441 = 14949^2 + 729^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (224004041) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17148 + ... + 27240.

Almost surely, 2^224004042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224004042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252824418).

224004042 is an abundant number, since it is smaller than the sum of its proper divisors (281644794).

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

224004042 is a wasteful number, since it uses less digits than its factorization.

224004042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10244 (or 10235 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 224004042 is about 14966.7645802291. The cubic root of 224004042 is about 607.3214472974.

Adding to 224004042 its reverse (240400422), we get a palindrome (464404464).

The spelling of 224004042 in words is "two hundred twenty-four million, four thousand, forty-two".