18466929 has 12 divisors (see below), whose sum is σ = 28726516. Its totient is φ = 11364192.

The previous prime is 18466901. The next prime is 18466937. The reversal of 18466929 is 92966481.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10497600 + 7969329 = 3240^2 + 2823^2 .

It is not a de Polignac number, because 18466929 - 2⁵ = 18466897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18466969) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 78802 + ... + 79035.

Almost surely, 2^18466929 is an apocalyptic number.

It is an amenable number.

18466929 is a deficient number, since it is larger than the sum of its proper divisors (10259587).

18466929 is a wasteful number, since it uses less digits than its factorization.

18466929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157856 (or 157853 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 18466929 is about 4297.3164882284. The cubic root of 18466929 is about 264.3209337320.

The spelling of 18466929 in words is "eighteen million, four hundred sixty-six thousand, nine hundred twenty-nine".