22195742 has 4 divisors (see below), whose sum is σ = 33293616. Its totient is φ = 11097870.

The previous prime is 22195739. The next prime is 22195753. The reversal of 22195742 is 24759122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24759122 = 2 ⋅12379561.

It is a junction number, because it is equal to n+sod(n) for n = 22195699 and 22195708.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5548934 + ... + 5548937.

It is an arithmetic number, because the mean of its divisors is an integer number (8323404).

Almost surely, 2^22195742 is an apocalyptic number.

22195742 is a deficient number, since it is larger than the sum of its proper divisors (11097874).

22195742 is a wasteful number, since it uses less digits than its factorization.

22195742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11097873.

The product of its digits is 10080, while the sum is 32.

The square root of 22195742 is about 4711.2357190020. The cubic root of 22195742 is about 281.0325059596.

The spelling of 22195742 in words is "twenty-two million, one hundred ninety-five thousand, seven hundred forty-two".