442133412 has 24 divisors (see below), whose sum is σ = 1179022656. Its totient is φ = 126323808.

The previous prime is 442133389. The next prime is 442133413. The reversal of 442133412 is 214331244.

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

It is not an unprimeable number, because it can be changed into a prime (442133413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2631663 + ... + 2631830.

It is an arithmetic number, because the mean of its divisors is an integer number (49125944).

Almost surely, 2^442133412 is an apocalyptic number.

442133412 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

442133412 is an abundant number, since it is smaller than the sum of its proper divisors (736889244).

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

442133412 is a wasteful number, since it uses less digits than its factorization.

442133412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5263507 (or 5263505 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 442133412 is about 21026.9686830984. The cubic root of 442133412 is about 761.8177931816.

Adding to 442133412 its reverse (214331244), we get a palindrome (656464656).

The spelling of 442133412 in words is "four hundred forty-two million, one hundred thirty-three thousand, four hundred twelve".