445642463 has 4 divisors (see below), whose sum is σ = 509305680. Its totient is φ = 381979248.

The previous prime is 445642451. The next prime is 445642469. The reversal of 445642463 is 364246544.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 445642463 - 2¹⁴ = 445626079 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 (445642469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31831598 + ... + 31831611.

It is an arithmetic number, because the mean of its divisors is an integer number (127326420).

Almost surely, 2^445642463 is an apocalyptic number.

445642463 is a deficient number, since it is larger than the sum of its proper divisors (63663217).

445642463 is an equidigital number, since it uses as much as digits as its factorization.

445642463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63663216.

The product of its digits is 276480, while the sum is 38.

The square root of 445642463 is about 21110.2454509653. The cubic root of 445642463 is about 763.8279076356.

The spelling of 445642463 in words is "four hundred forty-five million, six hundred forty-two thousand, four hundred sixty-three".