12992020 has 24 divisors (see below), whose sum is σ = 27919584. Its totient is φ = 5075616.

The previous prime is 12992017. The next prime is 12992051. The reversal of 12992020 is 2029921.

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 7 ways as a sum of consecutive naturals, for example, 6694 + ... + 8413.

It is an arithmetic number, because the mean of its divisors is an integer number (1163316).

Almost surely, 2^12992020 is an apocalyptic number.

12992020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12992020 is an abundant number, since it is smaller than the sum of its proper divisors (14927564).

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

12992020 is a wasteful number, since it uses less digits than its factorization.

12992020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15159 (or 15157 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 12992020 is about 3604.4444786957. Note that the first 4 decimals coincide. The cubic root of 12992020 is about 235.0853469991.

The spelling of 12992020 in words is "twelve million, nine hundred ninety-two thousand, twenty".