442904447450 has 24 divisors (see below), whose sum is σ = 823836922848. Its totient is φ = 177154327280.

The previous prime is 442904447443. The next prime is 442904447473. The reversal of 442904447450 is 54744409244.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 442904447395 and 442904447404.

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, 1102619 + ... + 1449681.

It is an arithmetic number, because the mean of its divisors is an integer number (34326538452).

Almost surely, 2^442904447450 is an apocalyptic number.

442904447450 is a deficient number, since it is larger than the sum of its proper divisors (380932475398).

442904447450 is a wasteful number, since it uses less digits than its factorization.

442904447450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372598 (or 372593 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 47.

The spelling of 442904447450 in words is "four hundred forty-two billion, nine hundred four million, four hundred forty-seven thousand, four hundred fifty".