22315242 has 8 divisors (see below), whose sum is σ = 44630496. Its totient is φ = 7438412.

The previous prime is 22315231. The next prime is 22315247. The reversal of 22315242 is 24251322.

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

22315242 is an admirable number.

It is a super-3 number, since 3×22315242³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22315247) 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, 1859598 + ... + 1859609.

It is an arithmetic number, because the mean of its divisors is an integer number (5578812).

Almost surely, 2^22315242 is an apocalyptic number.

22315242 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.

22315242 is a wasteful number, since it uses less digits than its factorization.

22315242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719212.

The product of its digits is 960, while the sum is 21.

The square root of 22315242 is about 4723.9011420647. The cubic root of 22315242 is about 281.5359552856.

Adding to 22315242 its reverse (24251322), we get a palindrome (46566564).

The spelling of 22315242 in words is "twenty-two million, three hundred fifteen thousand, two hundred forty-two".