42311612 has 12 divisors (see below), whose sum is σ = 84623280. Its totient is φ = 18133536.

The previous prime is 42311611. The next prime is 42311617. The reversal of 42311612 is 21611324.

42311612 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42311611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755537 + ... + 755592.

It is an arithmetic number, because the mean of its divisors is an integer number (7051940).

Almost surely, 2^42311612 is an apocalyptic number.

It is an amenable number.

42311612 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42311612 is a wasteful number, since it uses less digits than its factorization.

42311612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511140 (or 1511138 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 42311612 is about 6504.7376580459. The cubic root of 42311612 is about 348.4602071858.

Subtracting from 42311612 its product of digits (288), we obtain a palindrome (42311324).

Adding to 42311612 its reverse (21611324), we get a palindrome (63922936).

The spelling of 42311612 in words is "forty-two million, three hundred eleven thousand, six hundred twelve".