18792142 has 4 divisors (see below), whose sum is σ = 28188216. Its totient is φ = 9396070.

The previous prime is 18792079. The next prime is 18792143. The reversal of 18792142 is 24129781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24129781 = 13 ⋅1856137.

It is a junction number, because it is equal to n+sod(n) for n = 18792098 and 18792107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18792143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4698034 + ... + 4698037.

It is an arithmetic number, because the mean of its divisors is an integer number (7047054).

Almost surely, 2^18792142 is an apocalyptic number.

18792142 is a deficient number, since it is larger than the sum of its proper divisors (9396074).

18792142 is an equidigital number, since it uses as much as digits as its factorization.

18792142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9396073.

The product of its digits is 8064, while the sum is 34.

The square root of 18792142 is about 4334.9904267484. The cubic root of 18792142 is about 265.8635269559.

It can be divided in two parts, 187 and 92142, that added together give a palindrome (92329).

The spelling of 18792142 in words is "eighteen million, seven hundred ninety-two thousand, one hundred forty-two".