445304423 has 4 divisors (see below), whose sum is σ = 445359048. Its totient is φ = 445249800.

The previous prime is 445304383. The next prime is 445304437. The reversal of 445304423 is 324403544.

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

It is a cyclic number.

It is not a de Polignac number, because 445304423 - 2⁶ = 445304359 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 (445304323) 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, 12353 + ... + 32298.

It is an arithmetic number, because the mean of its divisors is an integer number (111339762).

Almost surely, 2^445304423 is an apocalyptic number.

445304423 is a deficient number, since it is larger than the sum of its proper divisors (54625).

445304423 is an equidigital number, since it uses as much as digits as its factorization.

445304423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54624.

The product of its (nonzero) digits is 23040, while the sum is 29.

The square root of 445304423 is about 21102.2373932244. The cubic root of 445304423 is about 763.6347260895.

Adding to 445304423 its reverse (324403544), we get a palindrome (769707967).

The spelling of 445304423 in words is "four hundred forty-five million, three hundred four thousand, four hundred twenty-three".