12200456 has 8 divisors (see below), whose sum is σ = 22875870. Its totient is φ = 6100224.

The previous prime is 12200443. The next prime is 12200471. The reversal of 12200456 is 65400221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9424900 + 2775556 = 3070^2 + 1666^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12200456² = 297702253215872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762521 + ... + 762536.

Almost surely, 2^12200456 is an apocalyptic number.

It is an amenable number.

12200456 is a deficient number, since it is larger than the sum of its proper divisors (10675414).

12200456 is a wasteful number, since it uses less digits than its factorization.

12200456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525063 (or 1525059 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 12200456 is about 3492.9151149148. The cubic root of 12200456 is about 230.2106199227.

Adding to 12200456 its reverse (65400221), we get a palindrome (77600677).

The spelling of 12200456 in words is "twelve million, two hundred thousand, four hundred fifty-six".