445138353 has 48 divisors (see below), whose sum is σ = 760923072. Its totient is φ = 247680000.

The previous prime is 445138349. The next prime is 445138357. The reversal of 445138353 is 353831544.

It is an interprime number because it is at equal distance from previous prime (445138349) and next prime (445138357).

It is not a de Polignac number, because 445138353 - 2² = 445138349 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (445138357) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65778 + ... + 72228.

It is an arithmetic number, because the mean of its divisors is an integer number (15852564).

Almost surely, 2^445138353 is an apocalyptic number.

It is an amenable number.

445138353 is a deficient number, since it is larger than the sum of its proper divisors (315784719).

445138353 is a wasteful number, since it uses less digits than its factorization.

445138353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6526 (or 6523 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 445138353 is about 21098.3021354800. The cubic root of 445138353 is about 763.5397853549.

Adding to 445138353 its reverse (353831544), we get a palindrome (798969897).

The spelling of 445138353 in words is "four hundred forty-five million, one hundred thirty-eight thousand, three hundred fifty-three".