42663285 has 96 divisors (see below), whose sum is σ = 92731392. Its totient is φ = 17694720.

The previous prime is 42663281. The next prime is 42663287. The reversal of 42663285 is 58236624.

It is not a de Polignac number, because 42663285 - 2² = 42663281 is a prime.

Its product of digits (69120) is a multiple of the sum of its prime divisors (320).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42663281) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 165877 + ... + 166133.

It is an arithmetic number, because the mean of its divisors is an integer number (965952).

Almost surely, 2^42663285 is an apocalyptic number.

42663285 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42663285 is an abundant number, since it is smaller than the sum of its proper divisors (50068107).

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

42663285 is a wasteful number, since it uses less digits than its factorization.

42663285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 320 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 42663285 is about 6531.7137873609. The cubic root of 42663285 is about 349.4229539071.

The spelling of 42663285 in words is "forty-two million, six hundred sixty-three thousand, two hundred eighty-five".