18295429 has 2 divisors, whose sum is σ = 18295430. Its totient is φ = 18295428.

The previous prime is 18295421. The next prime is 18295439. The reversal of 18295429 is 92459281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9622404 + 8673025 = 3102^2 + 2945^2 .

It is an emirp because it is prime and its reverse (92459281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18295429 - 2³ = 18295421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18295391 and 18295400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18295421) 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 as a sum of consecutive naturals, namely, 9147714 + 9147715.

It is an arithmetic number, because the mean of its divisors is an integer number (9147715).

Almost surely, 2^18295429 is an apocalyptic number.

It is an amenable number.

18295429 is a deficient number, since it is larger than the sum of its proper divisors (1).

18295429 is an equidigital number, since it uses as much as digits as its factorization.

18295429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 40.

The square root of 18295429 is about 4277.3156301587. The cubic root of 18295429 is about 263.5001494262.

The spelling of 18295429 in words is "eighteen million, two hundred ninety-five thousand, four hundred twenty-nine".