442212412 has 12 divisors (see below), whose sum is σ = 774645760. Its totient is φ = 220885056.

The previous prime is 442212391. The next prime is 442212413. The reversal of 442212412 is 214212244.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442212413) 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, 50748 + ... + 58819.

Almost surely, 2^442212412 is an apocalyptic number.

It is an amenable number.

442212412 is a deficient number, since it is larger than the sum of its proper divisors (332433348).

442212412 is a wasteful number, since it uses less digits than its factorization.

442212412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110580 (or 110578 counting only the distinct ones).

The product of its digits is 1024, while the sum is 22.

The square root of 442212412 is about 21028.8471391087. The cubic root of 442212412 is about 761.8631641186.

Adding to 442212412 its reverse (214212244), we get a palindrome (656424656).

The spelling of 442212412 in words is "four hundred forty-two million, two hundred twelve thousand, four hundred twelve".