442620526243 has 16 divisors (see below), whose sum is σ = 523348750080. Its totient is φ = 366269160096.

The previous prime is 442620526219. The next prime is 442620526253. The reversal of 442620526243 is 342625026244.

It is a de Polignac number, because none of the positive numbers 2^k-442620526243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442620526196 and 442620526205.

It is not an unprimeable number, because it can be changed into a prime (442620526253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1972896 + ... + 2185762.

It is an arithmetic number, because the mean of its divisors is an integer number (32709296880).

Almost surely, 2^442620526243 is an apocalyptic number.

442620526243 is a deficient number, since it is larger than the sum of its proper divisors (80728223837).

442620526243 is a wasteful number, since it uses less digits than its factorization.

442620526243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223146.

The product of its (nonzero) digits is 552960, while the sum is 40.

The spelling of 442620526243 in words is "four hundred forty-two billion, six hundred twenty million, five hundred twenty-six thousand, two hundred forty-three".