442165245323043 has 32 divisors (see below), whose sum is σ = 643718782962432. Its totient is φ = 267741808880000.

The previous prime is 442165245322987. The next prime is 442165245323077. The reversal of 442165245323043 is 340323542561244.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 442165245323043 - 2⁴² = 437767198811939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442165245322983 and 442165245323001.

It is not an unprimeable number, because it can be changed into a prime (442165245423043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184732321 + ... + 187110557.

It is an arithmetic number, because the mean of its divisors is an integer number (20116211967576).

Almost surely, 2^{442165245323043} is an apocalyptic number.

442165245323043 is a deficient number, since it is larger than the sum of its proper divisors (201553537639389).

442165245323043 is a wasteful number, since it uses less digits than its factorization.

442165245323043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383235.

The product of its (nonzero) digits is 8294400, while the sum is 48.

Adding to 442165245323043 its reverse (340323542561244), we get a palindrome (782488787884287).

The spelling of 442165245323043 in words is "four hundred forty-two trillion, one hundred sixty-five billion, two hundred forty-five million, three hundred twenty-three thousand, forty-three".