442445355 has 64 divisors (see below), whose sum is σ = 861373440. Its totient is φ = 213696000.

The previous prime is 442445323. The next prime is 442445363. The reversal of 442445355 is 553544244.

It is not a de Polignac number, because 442445355 - 2⁵ = 442445323 is a prime.

It is a super-2 number, since 2×442445355² = 391515784322152050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 595114 + ... + 595856.

It is an arithmetic number, because the mean of its divisors is an integer number (13458960).

Almost surely, 2^442445355 is an apocalyptic number.

442445355 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

442445355 is a deficient number, since it is larger than the sum of its proper divisors (418928085).

442445355 is a wasteful number, since it uses less digits than its factorization.

442445355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1163 counting only the distinct ones).

The product of its digits is 192000, while the sum is 36.

The square root of 442445355 is about 21034.3850635097. The cubic root of 442445355 is about 761.9969154813.

Adding to 442445355 its reverse (553544244), we get a palindrome (995989599).

The spelling of 442445355 in words is "four hundred forty-two million, four hundred forty-five thousand, three hundred fifty-five".