449808973 has 4 divisors (see below), whose sum is σ = 451398688. Its totient is φ = 448219260.

The previous prime is 449808923. The next prime is 449809007. The reversal of 449808973 is 379808944.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 449808973 - 2⁹ = 449808461 is a prime.

It is a super-2 number, since 2×449808973² = 404656224382629458, which contains 22 as substring.

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 449808973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449808913) 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, 794433 + ... + 794998.

It is an arithmetic number, because the mean of its divisors is an integer number (112849672).

Almost surely, 2^449808973 is an apocalyptic number.

It is an amenable number.

449808973 is a deficient number, since it is larger than the sum of its proper divisors (1589715).

449808973 is a wasteful number, since it uses less digits than its factorization.

449808973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589714.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 449808973 is about 21208.7004080872. The cubic root of 449808973 is about 766.2009831264.

The spelling of 449808973 in words is "four hundred forty-nine million, eight hundred eight thousand, nine hundred seventy-three".