449440478933 has 4 divisors (see below), whose sum is σ = 450024927660. Its totient is φ = 448856030208.

The previous prime is 449440478917. The next prime is 449440479031. The reversal of 449440478933 is 339874044944.

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

It can be written as a sum of positive squares in 2 ways, for example, as 90061810609 + 359378668324 = 300103^2 + 599482^2 .

It is a cyclic number.

It is not a de Polignac number, because 449440478933 - 2⁴ = 449440478917 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 (449440408933) 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, 292223210 + ... + 292224747.

It is an arithmetic number, because the mean of its divisors is an integer number (112506231915).

Almost surely, 2^449440478933 is an apocalyptic number.

It is an amenable number.

449440478933 is a deficient number, since it is larger than the sum of its proper divisors (584448727).

449440478933 is an equidigital number, since it uses as much as digits as its factorization.

449440478933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584448726.

The product of its (nonzero) digits is 41803776, while the sum is 59.

The spelling of 449440478933 in words is "four hundred forty-nine billion, four hundred forty million, four hundred seventy-eight thousand, nine hundred thirty-three".