22152642 has 8 divisors (see below), whose sum is σ = 44305296. Its totient is φ = 7384212.

The previous prime is 22152601. The next prime is 22152643. The reversal of 22152642 is 24625122.

It is a happy number.

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

22152642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (22152643) 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, 1846048 + ... + 1846059.

It is an arithmetic number, because the mean of its divisors is an integer number (5538162).

Almost surely, 2^22152642 is an apocalyptic number.

22152642 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.

22152642 is a wasteful number, since it uses less digits than its factorization.

22152642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3692112.

The product of its digits is 1920, while the sum is 24.

The square root of 22152642 is about 4706.6593248290. The cubic root of 22152642 is about 280.8504838169.

Adding to 22152642 its reverse (24625122), we get a palindrome (46777764).

The spelling of 22152642 in words is "twenty-two million, one hundred fifty-two thousand, six hundred forty-two".