18422533 has 8 divisors (see below), whose sum is σ = 19844000. Its totient is φ = 17046288.

The previous prime is 18422519. The next prime is 18422557. The reversal of 18422533 is 33522481.

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 18422533 - 2²¹ = 16325381 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 (18420533) 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, 10458 + ... + 12091.

It is an arithmetic number, because the mean of its divisors is an integer number (2480500).

Almost surely, 2^18422533 is an apocalyptic number.

It is an amenable number.

18422533 is a deficient number, since it is larger than the sum of its proper divisors (1421467).

18422533 is a wasteful number, since it uses less digits than its factorization.

18422533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22611.

The product of its digits is 5760, while the sum is 28.

The square root of 18422533 is about 4292.1478306321. The cubic root of 18422533 is about 264.1089474194.

The spelling of 18422533 in words is "eighteen million, four hundred twenty-two thousand, five hundred thirty-three".