224220042 has 32 divisors (see below), whose sum is σ = 499569600. Its totient is φ = 74544624.

The previous prime is 224220023. The next prime is 224220043. The reversal of 224220042 is 240022422.

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

It is a junction number, because it is equal to n+sod(n) for n = 224219997 and 224220024.

It is not an unprimeable number, because it can be changed into a prime (224220043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16209 + ... + 26667.

It is an arithmetic number, because the mean of its divisors is an integer number (15611550).

Almost surely, 2^224220042 is an apocalyptic number.

224220042 is an abundant number, since it is smaller than the sum of its proper divisors (275349558).

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

224220042 is a wasteful number, since it uses less digits than its factorization.

224220042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10867 (or 10861 counting only the distinct ones).

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

The square root of 224220042 is about 14973.9788299570. The cubic root of 224220042 is about 607.5165915298.

Adding to 224220042 its reverse (240022422), we get a palindrome (464242464).

The spelling of 224220042 in words is "two hundred twenty-four million, two hundred twenty thousand, forty-two".