18242763 has 32 divisors (see below), whose sum is σ = 30584832. Its totient is φ = 9396000.

The previous prime is 18242753. The next prime is 18242771. The reversal of 18242763 is 36724281.

It is not a de Polignac number, because 18242763 - 2⁴ = 18242747 is a prime.

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 (18242713) 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 in 31 ways as a sum of consecutive naturals, for example, 34620 + ... + 35142.

It is an arithmetic number, because the mean of its divisors is an integer number (955776).

Almost surely, 2^18242763 is an apocalyptic number.

18242763 is a deficient number, since it is larger than the sum of its proper divisors (12342069).

18242763 is a wasteful number, since it uses less digits than its factorization.

18242763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695.

The product of its digits is 16128, while the sum is 33.

The square root of 18242763 is about 4271.1547618882. The cubic root of 18242763 is about 263.2470655124.

The spelling of 18242763 in words is "eighteen million, two hundred forty-two thousand, seven hundred sixty-three".