18146429 has 16 divisors (see below), whose sum is σ = 22176000. Its totient is φ = 14494464.

The previous prime is 18146423. The next prime is 18146441. The reversal of 18146429 is 92464181.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 18146429 - 2⁸ = 18146173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18146423) 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 15 ways as a sum of consecutive naturals, for example, 12272 + ... + 13670.

It is an arithmetic number, because the mean of its divisors is an integer number (1386000).

Almost surely, 2^18146429 is an apocalyptic number.

It is an amenable number.

18146429 is a deficient number, since it is larger than the sum of its proper divisors (4029571).

18146429 is a wasteful number, since it uses less digits than its factorization.

18146429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532.

The product of its digits is 13824, while the sum is 35.

The square root of 18146429 is about 4259.8625564682. The cubic root of 18146429 is about 262.7828738974.

The spelling of 18146429 in words is "eighteen million, one hundred forty-six thousand, four hundred twenty-nine".