442403520155399 has 16 divisors (see below), whose sum is σ = 490535281351680. Its totient is φ = 395590673772000.

The previous prime is 442403520155371. The next prime is 442403520155477. The reversal of 442403520155399 is 993551025304244.

It is a cyclic number.

It is not a de Polignac number, because 442403520155399 - 2²⁰ = 442403519106823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442403520155899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301996994 + ... + 303458384.

It is an arithmetic number, because the mean of its divisors is an integer number (30658455084480).

Almost surely, 2^{442403520155399} is an apocalyptic number.

442403520155399 is a deficient number, since it is larger than the sum of its proper divisors (48131761196281).

442403520155399 is a wasteful number, since it uses less digits than its factorization.

442403520155399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912622.

The product of its (nonzero) digits is 23328000, while the sum is 56.

The spelling of 442403520155399 in words is "four hundred forty-two trillion, four hundred three billion, five hundred twenty million, one hundred fifty-five thousand, three hundred ninety-nine".