445331445 has 32 divisors (see below), whose sum is σ = 788092032. Its totient is φ = 213311232.

The previous prime is 445331441. The next prime is 445331477. The reversal of 445331445 is 544133544.

It is a happy number.

It is not a de Polignac number, because 445331445 - 2² = 445331441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445331441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23647 + ... + 38076.

It is an arithmetic number, because the mean of its divisors is an integer number (24627876).

Almost surely, 2^445331445 is an apocalyptic number.

It is an amenable number.

445331445 is a deficient number, since it is larger than the sum of its proper divisors (342760587).

445331445 is a wasteful number, since it uses less digits than its factorization.

445331445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61781.

The product of its digits is 57600, while the sum is 33.

The square root of 445331445 is about 21102.8776473731. The cubic root of 445331445 is about 763.6501720923.

Adding to 445331445 its reverse (544133544), we get a palindrome (989464989).

The spelling of 445331445 in words is "four hundred forty-five million, three hundred thirty-one thousand, four hundred forty-five".