18142392 has 32 divisors (see below), whose sum is σ = 45536400. Its totient is φ = 6023424.

The previous prime is 18142391. The next prime is 18142393. The reversal of 18142392 is 29324181.

It is an interprime number because it is at equal distance from previous prime (18142391) and next prime (18142393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18142391) 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 7 ways as a sum of consecutive naturals, for example, 5284 + ... + 8012.

Almost surely, 2^18142392 is an apocalyptic number.

18142392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18142392 is an abundant number, since it is smaller than the sum of its proper divisors (27394008).

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

18142392 is a wasteful number, since it uses less digits than its factorization.

18142392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015 (or 3011 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 18142392 is about 4259.3886885327. The cubic root of 18142392 is about 262.7633855242.

The spelling of 18142392 in words is "eighteen million, one hundred forty-two thousand, three hundred ninety-two".