18633142 has 8 divisors (see below), whose sum is σ = 30490632. Its totient is φ = 8469600.

The previous prime is 18633133. The next prime is 18633143. The reversal of 18633142 is 24133681.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18633142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18633143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423459 + ... + 423502.

It is an arithmetic number, because the mean of its divisors is an integer number (3811329).

Almost surely, 2^18633142 is an apocalyptic number.

18633142 is a deficient number, since it is larger than the sum of its proper divisors (11857490).

18633142 is a wasteful number, since it uses less digits than its factorization.

18633142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846974.

The product of its digits is 3456, while the sum is 28.

The square root of 18633142 is about 4316.6123291303. The cubic root of 18633142 is about 265.1115799255. Note that the first 3 decimals are identical.

It can be divided in two parts, 1863 and 3142, that added together give a palindrome (5005).

The spelling of 18633142 in words is "eighteen million, six hundred thirty-three thousand, one hundred forty-two".