18142796 has 48 divisors (see below), whose sum is σ = 38841600. Its totient is φ = 7242048.

The previous prime is 18142793. The next prime is 18142819. The reversal of 18142796 is 69724181.

It is a super-2 number, since 2×18142796² = 658322093395232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (18142793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35390 + ... + 35898.

It is an arithmetic number, because the mean of its divisors is an integer number (809200).

Almost surely, 2^18142796 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18142796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19420800).

18142796 is an abundant number, since it is smaller than the sum of its proper divisors (20698804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18142796 is a wasteful number, since it uses less digits than its factorization.

18142796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606 (or 604 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 18142796 is about 4259.4361129145. The cubic root of 18142796 is about 262.7653359399.

The spelling of 18142796 in words is "eighteen million, one hundred forty-two thousand, seven hundred ninety-six".