12200436 has 24 divisors (see below), whose sum is σ = 31631040. Its totient is φ = 4066776.

The previous prime is 12200431. The next prime is 12200437. The reversal of 12200436 is 63400221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200431) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 56376 + ... + 56591.

It is an arithmetic number, because the mean of its divisors is an integer number (1317960).

Almost surely, 2^12200436 is an apocalyptic number.

It is an amenable number.

12200436 is an abundant number, since it is smaller than the sum of its proper divisors (19430604).

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

12200436 is a wasteful number, since it uses less digits than its factorization.

12200436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112980 (or 112972 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 12200436 is about 3492.9122519754. The cubic root of 12200436 is about 230.2104941292.

Adding to 12200436 its reverse (63400221), we get a palindrome (75600657).

The spelling of 12200436 in words is "twelve million, two hundred thousand, four hundred thirty-six".