42444212 has 12 divisors (see below), whose sum is σ = 74597796. Its totient is φ = 21130560.

The previous prime is 42444203. The next prime is 42444221. The reversal of 42444212 is 21244424.

42444212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42444203) and next prime (42444221).

It can be written as a sum of positive squares in 2 ways, for example, as 5550736 + 36893476 = 2356^2 + 6074^2 .

It is a super-2 number, since 2×42444212² = 3603022264601888, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 21839 + ... + 23702.

It is an arithmetic number, because the mean of its divisors is an integer number (6216483).

Almost surely, 2^42444212 is an apocalyptic number.

It is an amenable number.

42444212 is a deficient number, since it is larger than the sum of its proper divisors (32153584).

42444212 is a wasteful number, since it uses less digits than its factorization.

42444212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45778 (or 45776 counting only the distinct ones).

The product of its digits is 2048, while the sum is 23.

The square root of 42444212 is about 6514.9222558677. The cubic root of 42444212 is about 348.8238397455.

Adding to 42444212 its reverse (21244424), we get a palindrome (63688636).

The spelling of 42444212 in words is "forty-two million, four hundred forty-four thousand, two hundred twelve".