18142476 has 24 divisors (see below), whose sum is σ = 46181184. Its totient is φ = 5497680.

The previous prime is 18142463. The next prime is 18142477. The reversal of 18142476 is 67424181.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (18142477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68590 + ... + 68853.

It is an arithmetic number, because the mean of its divisors is an integer number (1924216).

Almost surely, 2^18142476 is an apocalyptic number.

It is an amenable number.

18142476 is an abundant number, since it is smaller than the sum of its proper divisors (28038708).

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

18142476 is a wasteful number, since it uses less digits than its factorization.

18142476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137461 (or 137459 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 18142476 is about 4259.3985490912. The cubic root of 18142476 is about 262.7637910586.

The spelling of 18142476 in words is "eighteen million, one hundred forty-two thousand, four hundred seventy-six".