18463142 has 4 divisors (see below), whose sum is σ = 27694716. Its totient is φ = 9231570.

The previous prime is 18463141. The next prime is 18463163. The reversal of 18463142 is 24136481.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×18463142² = 681775225024328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18463141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4615784 + ... + 4615787.

It is an arithmetic number, because the mean of its divisors is an integer number (6923679).

Almost surely, 2^18463142 is an apocalyptic number.

18463142 is a deficient number, since it is larger than the sum of its proper divisors (9231574).

18463142 is an equidigital number, since it uses as much as digits as its factorization.

18463142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9231573.

The product of its digits is 4608, while the sum is 29.

The square root of 18463142 is about 4296.8758418181. The cubic root of 18463142 is about 264.3028644615.

The spelling of 18463142 in words is "eighteen million, four hundred sixty-three thousand, one hundred forty-two".