22369812 has 12 divisors (see below), whose sum is σ = 52196256. Its totient is φ = 7456600.

The previous prime is 22369801. The next prime is 22369829. The reversal of 22369812 is 21896322.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its 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 3 ways as a sum of consecutive naturals, for example, 932064 + ... + 932087.

It is an arithmetic number, because the mean of its divisors is an integer number (4349688).

Almost surely, 2^22369812 is an apocalyptic number.

It is an amenable number.

22369812 is an abundant number, since it is smaller than the sum of its proper divisors (29826444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22369812 is a wasteful number, since it uses less digits than its factorization.

22369812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864158 (or 1864156 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 22369812 is about 4729.6735616742. The cubic root of 22369812 is about 281.7652591065.

The spelling of 22369812 in words is "twenty-two million, three hundred sixty-nine thousand, eight hundred twelve".