42000312 has 16 divisors (see below), whose sum is σ = 105000840. Its totient is φ = 14000096.

The previous prime is 42000289. The next prime is 42000349. The reversal of 42000312 is 21300024.

42000312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

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, 874983 + ... + 875030.

Almost surely, 2^42000312 is an apocalyptic number.

It is an amenable number.

42000312 is an abundant number, since it is smaller than the sum of its proper divisors (63000528).

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

42000312 is a wasteful number, since it uses less digits than its factorization.

42000312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750022 (or 1750018 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 42000312 is about 6480.7647696858. The cubic root of 42000312 is about 347.6035252169.

Adding to 42000312 its reverse (21300024), we get a palindrome (63300336).

The spelling of 42000312 in words is "forty-two million, three hundred twelve", and thus it is an aban number.