449669679 has 16 divisors (see below), whose sum is σ = 621757920. Its totient is φ = 288731520.

The previous prime is 449669603. The next prime is 449669719. The reversal of 449669679 is 976966944.

It is not a de Polignac number, because 449669679 - 2⁷ = 449669551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449669579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30489 + ... + 42765.

It is an arithmetic number, because the mean of its divisors is an integer number (38859870).

Almost surely, 2^449669679 is an apocalyptic number.

449669679 is a deficient number, since it is larger than the sum of its proper divisors (172088241).

449669679 is a wasteful number, since it uses less digits than its factorization.

449669679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12730.

The product of its digits is 17635968, while the sum is 60.

The square root of 449669679 is about 21205.4162656619. The cubic root of 449669679 is about 766.1218842015.

It can be divided in two parts, 44966 and 9679, that added together give a palindrome (54645).

The spelling of 449669679 in words is "four hundred forty-nine million, six hundred sixty-nine thousand, six hundred seventy-nine".