18454453 has 8 divisors (see below), whose sum is σ = 19951520. Its totient is φ = 17010000.

The previous prime is 18454451. The next prime is 18454477. The reversal of 18454453 is 35445481.

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 18454453 - 2¹ = 18454451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18454451) 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, 12423 + ... + 13828.

It is an arithmetic number, because the mean of its divisors is an integer number (2493940).

Almost surely, 2^18454453 is an apocalyptic number.

It is an amenable number.

18454453 is a deficient number, since it is larger than the sum of its proper divisors (1497067).

18454453 is a wasteful number, since it uses less digits than its factorization.

18454453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26307.

The product of its digits is 38400, while the sum is 34.

The square root of 18454453 is about 4295.8646393945. The cubic root of 18454453 is about 264.2613964755.

The spelling of 18454453 in words is "eighteen million, four hundred fifty-four thousand, four hundred fifty-three".