663042 has 16 divisors (see below), whose sum is σ = 1349280. Its totient is φ = 217152.

The previous prime is 663037. The next prime is 663049. The reversal of 663042 is 240366.

It is not an unprimeable number, because it can be changed into a prime (663049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583 + ... + 1290.

It is an arithmetic number, because the mean of its divisors is an integer number (84330).

2⁶⁶³⁰⁴² is an apocalyptic number.

663042 is an abundant number, since it is smaller than the sum of its proper divisors (686238).

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

663042 is a wasteful number, since it uses less digits than its factorization.

663042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 663042 is about 814.2739096889. The cubic root of 663042 is about 87.1994367722.

The spelling of 663042 in words is "six hundred sixty-three thousand, forty-two".