42663069 has 12 divisors (see below), whose sum is σ = 61695036. Its totient is φ = 28409472.

The previous prime is 42663067. The next prime is 42663133. The reversal of 42663069 is 96036624.

It can be written as a sum of positive squares in 2 ways, for example, as 21040569 + 21622500 = 4587^2 + 4650^2 .

It is not a de Polignac number, because 42663069 - 2¹ = 42663067 is a prime.

It is a super-2 number, since 2×42663069² = 3640274912997522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42663067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7669 + ... + 12005.

It is an arithmetic number, because the mean of its divisors is an integer number (5141253).

Almost surely, 2^42663069 is an apocalyptic number.

It is an amenable number.

42663069 is a deficient number, since it is larger than the sum of its proper divisors (19031967).

42663069 is a wasteful number, since it uses less digits than its factorization.

42663069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5436 (or 5433 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 42663069 is about 6531.6972526289. The cubic root of 42663069 is about 349.4223642081.

The spelling of 42663069 in words is "forty-two million, six hundred sixty-three thousand, sixty-nine".