42442312 has 32 divisors (see below), whose sum is σ = 89812800. Its totient is φ = 18625600.

The previous prime is 42442307. The next prime is 42442349. The reversal of 42442312 is 21324424.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 5764 + ... + 10867.

It is an arithmetic number, because the mean of its divisors is an integer number (2806650).

Almost surely, 2^42442312 is an apocalyptic number.

It is an amenable number.

42442312 is an abundant number, since it is smaller than the sum of its proper divisors (47370488).

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

42442312 is a wasteful number, since it uses less digits than its factorization.

42442312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16677 (or 16673 counting only the distinct ones).

The product of its digits is 1536, while the sum is 22.

The square root of 42442312 is about 6514.7764351511. The cubic root of 42442312 is about 348.8186346762.

Adding to 42442312 its reverse (21324424), we get a palindrome (63766736).

It can be divided in two parts, 4244 and 2312, that added together give a palindrome (6556).

The spelling of 42442312 in words is "forty-two million, four hundred forty-two thousand, three hundred twelve".