22223442 has 8 divisors (see below), whose sum is σ = 44446896. Its totient is φ = 7407812.

The previous prime is 22223429. The next prime is 22223473. The reversal of 22223442 is 24432222.

It is a sphenic number, since it is the product of 3 distinct primes.

22223442 is an admirable number.

It is a super-3 number, since 3×22223442³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1851948 + ... + 1851959.

It is an arithmetic number, because the mean of its divisors is an integer number (5555862).

Almost surely, 2^22223442 is an apocalyptic number.

22223442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22223442 is a wasteful number, since it uses less digits than its factorization.

22223442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703912.

The product of its digits is 1536, while the sum is 21.

The square root of 22223442 is about 4714.1745831057. The cubic root of 22223442 is about 281.1493656752.

Adding to 22223442 its reverse (24432222), we get a palindrome (46655664).

The spelling of 22223442 in words is "twenty-two million, two hundred twenty-three thousand, four hundred forty-two".