442305606466450 has 24 divisors (see below), whose sum is σ = 822690396015012. Its totient is φ = 176921819363520.

The previous prime is 442305606466441. The next prime is 442305606466487. The reversal of 442305606466450 is 54664606503244.

It can be written as a sum of positive squares in 6 ways, for example, as 145710079107849 + 296595527358601 = 12071043^2 + 17221949^2 .

It is a junction number, because it is equal to n+sod(n) for n = 442305606466391 and 442305606466400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10964592 + ... + 31699108.

Almost surely, 2^{442305606466450} is an apocalyptic number.

442305606466450 is a deficient number, since it is larger than the sum of its proper divisors (380384789548562).

442305606466450 is a wasteful number, since it uses less digits than its factorization.

442305606466450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21161166 (or 21161161 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 55.

The spelling of 442305606466450 in words is "four hundred forty-two trillion, three hundred five billion, six hundred six million, four hundred sixty-six thousand, four hundred fifty".