18742033 has 8 divisors (see below), whose sum is σ = 20232000. Its totient is φ = 17308368.

The previous prime is 18742021. The next prime is 18742051. The reversal of 18742033 is 33024781.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18742033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18741992 and 18742010.

It is not an unprimeable number, because it can be changed into a prime (18742133) 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, 13383 + ... + 14716.

It is an arithmetic number, because the mean of its divisors is an integer number (2529000).

Almost surely, 2^18742033 is an apocalyptic number.

It is an amenable number.

18742033 is a deficient number, since it is larger than the sum of its proper divisors (1489967).

18742033 is a wasteful number, since it uses less digits than its factorization.

18742033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28151.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 18742033 is about 4329.2069712593. The cubic root of 18742033 is about 265.6270094058.

The spelling of 18742033 in words is "eighteen million, seven hundred forty-two thousand, thirty-three".