42669013 has 4 divisors (see below), whose sum is σ = 42691168. Its totient is φ = 42646860.

The previous prime is 42668993. The next prime is 42669037. The reversal of 42669013 is 31096624.

42669013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42669013 is a prime.

It is a super-3 number, since 3×42669013³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42669313) 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 3 ways as a sum of consecutive naturals, for example, 7881 + ... + 12142.

It is an arithmetic number, because the mean of its divisors is an integer number (10672792).

Almost surely, 2^42669013 is an apocalyptic number.

It is an amenable number.

42669013 is a deficient number, since it is larger than the sum of its proper divisors (22155).

42669013 is a wasteful number, since it uses less digits than its factorization.

42669013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22154.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 42669013 is about 6532.1522486850. The cubic root of 42669013 is about 349.4385911239.

The spelling of 42669013 in words is "forty-two million, six hundred sixty-nine thousand, thirteen".