18075429 has 12 divisors (see below), whose sum is σ = 26208832. Its totient is φ = 12004200.

The previous prime is 18075427. The next prime is 18075443. The reversal of 18075429 is 92457081.

It is not a de Polignac number, because 18075429 - 2¹ = 18075427 is a prime.

It is a super-2 number, since 2×18075429² = 653442267068082, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18075393 and 18075402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18075427) 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 11 ways as a sum of consecutive naturals, for example, 1267 + ... + 6144.

Almost surely, 2^18075429 is an apocalyptic number.

It is an amenable number.

18075429 is a deficient number, since it is larger than the sum of its proper divisors (8133403).

18075429 is a wasteful number, since it uses less digits than its factorization.

18075429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7688 (or 7685 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 18075429 is about 4251.5207867303. The cubic root of 18075429 is about 262.4397031575.

The spelling of 18075429 in words is "eighteen million, seventy-five thousand, four hundred twenty-nine".