12229864 has 8 divisors (see below), whose sum is σ = 22931010. Its totient is φ = 6114928.

The previous prime is 12229843. The next prime is 12229873. The reversal of 12229864 is 46892221.

It can be written as a sum of positive squares in only one way, i.e., 11168964 + 1060900 = 3342^2 + 1030^2 .

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

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 as a sum of consecutive naturals, namely, 764359 + ... + 764374.

Almost surely, 2^12229864 is an apocalyptic number.

It is an amenable number.

12229864 is a deficient number, since it is larger than the sum of its proper divisors (10701146).

12229864 is a wasteful number, since it uses less digits than its factorization.

12229864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528739 (or 1528735 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 12229864 is about 3497.1222455042. The cubic root of 12229864 is about 230.3954381974.

The spelling of 12229864 in words is "twelve million, two hundred twenty-nine thousand, eight hundred sixty-four".