22393642 has 8 divisors (see below), whose sum is σ = 33916896. Its totient is φ = 11088012.

The previous prime is 22393601. The next prime is 22393643. The reversal of 22393642 is 24639322.

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

It is not an unprimeable number, because it can be changed into a prime (22393643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54148 + ... + 54559.

It is an arithmetic number, because the mean of its divisors is an integer number (4239612).

Almost surely, 2^22393642 is an apocalyptic number.

22393642 is a deficient number, since it is larger than the sum of its proper divisors (11523254).

22393642 is a wasteful number, since it uses less digits than its factorization.

22393642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108812.

The product of its digits is 15552, while the sum is 31.

The square root of 22393642 is about 4732.1920924662. The cubic root of 22393642 is about 281.8652760890.

The spelling of 22393642 in words is "twenty-two million, three hundred ninety-three thousand, six hundred forty-two".