442142055 has 12 divisors (see below), whose sum is σ = 766379640. Its totient is φ = 235809072.

The previous prime is 442142053. The next prime is 442142081. The reversal of 442142055 is 550241244.

442142055 is a `hidden beast` number, since 442 + 14 + 205 + 5 = 666.

It is not a de Polignac number, because 442142055 - 2¹ = 442142053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442142053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4912645 + ... + 4912734.

It is an arithmetic number, because the mean of its divisors is an integer number (63864970).

Almost surely, 2^442142055 is an apocalyptic number.

442142055 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

442142055 is a deficient number, since it is larger than the sum of its proper divisors (324237585).

442142055 is a wasteful number, since it uses less digits than its factorization.

442142055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9825390 (or 9825387 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 442142055 is about 21027.1742038725. The cubic root of 442142055 is about 761.8227572551.

Adding to 442142055 its reverse (550241244), we get a palindrome (992383299).

The spelling of 442142055 in words is "four hundred forty-two million, one hundred forty-two thousand, fifty-five".