22192742 has 48 divisors (see below), whose sum is σ = 40476672. Its totient is φ = 9041760.

The previous prime is 22192739. The next prime is 22192783. The reversal of 22192742 is 24729122.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174683 + ... + 174809.

It is an arithmetic number, because the mean of its divisors is an integer number (843264).

Almost surely, 2^22192742 is an apocalyptic number.

22192742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22192742 is a deficient number, since it is larger than the sum of its proper divisors (18283930).

22192742 is a wasteful number, since it uses less digits than its factorization.

22192742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 200 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 22192742 is about 4710.9173204377. The cubic root of 22192742 is about 281.0198438387.

The spelling of 22192742 in words is "twenty-two million, one hundred ninety-two thousand, seven hundred forty-two".