22129194 has 8 divisors (see below), whose sum is σ = 44258400. Its totient is φ = 7376396.

The previous prime is 22129193. The next prime is 22129213. The reversal of 22129194 is 49192122.

It is a happy number.

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

22129194 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (22129193) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1844094 + ... + 1844105.

It is an arithmetic number, because the mean of its divisors is an integer number (5532300).

Almost surely, 2^22129194 is an apocalyptic number.

22129194 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.

22129194 is a wasteful number, since it uses less digits than its factorization.

22129194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688204.

The product of its digits is 2592, while the sum is 30.

The square root of 22129194 is about 4704.1677266016. The cubic root of 22129194 is about 280.7513578376.

The spelling of 22129194 in words is "twenty-two million, one hundred twenty-nine thousand, one hundred ninety-four".