12236920 has 64 divisors (see below), whose sum is σ = 29445120. Its totient is φ = 4566144.

The previous prime is 12236911. The next prime is 12236941. The reversal of 12236920 is 2963221.

12236920 = T₁₄₁ + T₁₄₂ + ... + T₄₂₃.

It is a happy number.

It is a super-2 number, since 2×12236920² = 299484422172800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 43099 + ... + 43381.

It is an arithmetic number, because the mean of its divisors is an integer number (460080).

Almost surely, 2^12236920 is an apocalyptic number.

12236920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12236920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14722560).

12236920 is an abundant number, since it is smaller than the sum of its proper divisors (17208200).

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

12236920 is a wasteful number, since it uses less digits than its factorization.

12236920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 12236920 is about 3498.1309295108. The cubic root of 12236920 is about 230.4397384357.

The spelling of 12236920 in words is "twelve million, two hundred thirty-six thousand, nine hundred twenty".