18434573 has 8 divisors (see below), whose sum is σ = 18921408. Its totient is φ = 17950464.

The previous prime is 18434567. The next prime is 18434639. The reversal of 18434573 is 37543481.

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

It is a cyclic number.

It is not a de Polignac number, because 18434573 - 2⁶ = 18434509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18434873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24440 + ... + 25182.

It is an arithmetic number, because the mean of its divisors is an integer number (2365176).

Almost surely, 2^18434573 is an apocalyptic number.

It is an amenable number.

18434573 is a deficient number, since it is larger than the sum of its proper divisors (486835).

18434573 is an equidigital number, since it uses as much as digits as its factorization.

18434573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363.

The product of its digits is 40320, while the sum is 35.

The square root of 18434573 is about 4293.5501627441. The cubic root of 18434573 is about 264.1664708021.

The spelling of 18434573 in words is "eighteen million, four hundred thirty-four thousand, five hundred seventy-three".