445031463 has 4 divisors (see below), whose sum is σ = 593375288. Its totient is φ = 296687640.

The previous prime is 445031459. The next prime is 445031473. The reversal of 445031463 is 364130544.

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

It is not a de Polignac number, because 445031463 - 2² = 445031459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 445031463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445031473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74171908 + ... + 74171913.

It is an arithmetic number, because the mean of its divisors is an integer number (148343822).

Almost surely, 2^445031463 is an apocalyptic number.

445031463 is a deficient number, since it is larger than the sum of its proper divisors (148343825).

445031463 is a wasteful number, since it uses less digits than its factorization.

445031463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148343824.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 445031463 is about 21095.7688411681. The cubic root of 445031463 is about 763.4786648062.

The spelling of 445031463 in words is "four hundred forty-five million, thirty-one thousand, four hundred sixty-three".