22207242 has 8 divisors (see below), whose sum is σ = 44414496. Its totient is φ = 7402412.

The previous prime is 22207223. The next prime is 22207247. The reversal of 22207242 is 24270222.

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

22207242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (22207247) 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, 1850598 + ... + 1850609.

It is an arithmetic number, because the mean of its divisors is an integer number (5551812).

Almost surely, 2^22207242 is an apocalyptic number.

22207242 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.

22207242 is a wasteful number, since it uses less digits than its factorization.

22207242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701212.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 22207242 is about 4712.4560475404. The cubic root of 22207242 is about 281.0810335227.

Adding to 22207242 its reverse (24270222), we get a palindrome (46477464).

The spelling of 22207242 in words is "twenty-two million, two hundred seven thousand, two hundred forty-two".