42630012 has 36 divisors (see below), whose sum is σ = 108324216. Its totient is φ = 14135520.

The previous prime is 42630011. The next prime is 42630019. The reversal of 42630012 is 21003624.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42630011) 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, 4087 + ... + 10097.

It is an arithmetic number, because the mean of its divisors is an integer number (3009006).

Almost surely, 2^42630012 is an apocalyptic number.

It is an amenable number.

42630012 is an abundant number, since it is smaller than the sum of its proper divisors (65694204).

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

42630012 is a wasteful number, since it uses less digits than its factorization.

42630012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6218 (or 6213 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 42630012 is about 6529.1662561157. The cubic root of 42630012 is about 349.3320922234.

Adding to 42630012 its reverse (21003624), we get a palindrome (63633636).

The spelling of 42630012 in words is "forty-two million, six hundred thirty thousand, twelve".