12192920 has 32 divisors (see below), whose sum is σ = 28321920. Its totient is φ = 4719360.

The previous prime is 12192919. The next prime is 12192923. The reversal of 12192920 is 2929121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12192920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12192923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3677 + ... + 6156.

It is an arithmetic number, because the mean of its divisors is an integer number (885060).

Almost surely, 2^12192920 is an apocalyptic number.

12192920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12192920 is an abundant number, since it is smaller than the sum of its proper divisors (16129000).

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

12192920 is a wasteful number, since it uses less digits than its factorization.

12192920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9875 (or 9871 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 12192920 is about 3491.8361931797. The cubic root of 12192920 is about 230.1632111878.

The spelling of 12192920 in words is "twelve million, one hundred ninety-two thousand, nine hundred twenty".