42806012 has 24 divisors (see below), whose sum is σ = 79094400. Its totient is φ = 20214576.

The previous prime is 42805999. The next prime is 42806041. The reversal of 42806012 is 21060824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32723 + ... + 34005.

It is an arithmetic number, because the mean of its divisors is an integer number (3295600).

Almost surely, 2^42806012 is an apocalyptic number.

It is an amenable number.

42806012 is a deficient number, since it is larger than the sum of its proper divisors (36288388).

42806012 is a wasteful number, since it uses less digits than its factorization.

42806012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745 (or 1743 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 42806012 is about 6542.6303578912. The cubic root of 42806012 is about 349.8121767760.

Adding to 42806012 its reverse (21060824), we get a palindrome (63866836).

The spelling of 42806012 in words is "forty-two million, eight hundred six thousand, twelve".