22193949 has 8 divisors (see below), whose sum is σ = 29719872. Its totient is φ = 14732000.

The previous prime is 22193939. The next prime is 22193953. The reversal of 22193949 is 94939122.

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

It is a cyclic number.

It is not a de Polignac number, because 22193949 - 2⁴ = 22193933 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22193929) 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 7 ways as a sum of consecutive naturals, for example, 15177 + ... + 16574.

It is an arithmetic number, because the mean of its divisors is an integer number (3714984).

Almost surely, 2^22193949 is an apocalyptic number.

It is an amenable number.

22193949 is a deficient number, since it is larger than the sum of its proper divisors (7525923).

22193949 is a wasteful number, since it uses less digits than its factorization.

22193949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31987.

The product of its digits is 34992, while the sum is 39.

The square root of 22193949 is about 4711.0454253807. The cubic root of 22193949 is about 281.0249383692.

The spelling of 22193949 in words is "twenty-two million, one hundred ninety-three thousand, nine hundred forty-nine".