18429454 has 8 divisors (see below), whose sum is σ = 27843480. Its totient is φ = 9148296.

The previous prime is 18429443. The next prime is 18429457. The reversal of 18429454 is 45492481.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18429457) 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, 32869 + ... + 33424.

It is an arithmetic number, because the mean of its divisors is an integer number (3480435).

Almost surely, 2^18429454 is an apocalyptic number.

18429454 is a deficient number, since it is larger than the sum of its proper divisors (9414026).

18429454 is a wasteful number, since it uses less digits than its factorization.

18429454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66434.

The product of its digits is 46080, while the sum is 37.

The square root of 18429454 is about 4292.9539946289. The cubic root of 18429454 is about 264.1420168707.

The spelling of 18429454 in words is "eighteen million, four hundred twenty-nine thousand, four hundred fifty-four".