442135550 has 48 divisors (see below), whose sum is σ = 835324512. Its totient is φ = 174096000.

The previous prime is 442135511. The next prime is 442135553. The reversal of 442135550 is 55531244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442135553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1185164 + ... + 1185536.

It is an arithmetic number, because the mean of its divisors is an integer number (17402594).

Almost surely, 2^442135550 is an apocalyptic number.

442135550 is a deficient number, since it is larger than the sum of its proper divisors (393188962).

442135550 is a wasteful number, since it uses less digits than its factorization.

442135550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 442135550 is about 21027.0195225096. The cubic root of 442135550 is about 761.8190211396.

Adding to 442135550 its reverse (55531244), we get a palindrome (497666794).

The spelling of 442135550 in words is "four hundred forty-two million, one hundred thirty-five thousand, five hundred fifty".