18429130 has 8 divisors (see below), whose sum is σ = 33172452. Its totient is φ = 7371648.

The previous prime is 18429119. The next prime is 18429133. The reversal of 18429130 is 3192481.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18207289 + 221841 = 4267^2 + 471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18429133) 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 3 ways as a sum of consecutive naturals, for example, 921447 + ... + 921466.

Almost surely, 2^18429130 is an apocalyptic number.

18429130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18429130 is a deficient number, since it is larger than the sum of its proper divisors (14743322).

18429130 is a wasteful number, since it uses less digits than its factorization.

18429130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842920.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 18429130 is about 4292.9162582096. The cubic root of 18429130 is about 264.1404689406.

The spelling of 18429130 in words is "eighteen million, four hundred twenty-nine thousand, one hundred thirty".