449420289 has 4 divisors (see below), whose sum is σ = 599227056. Its totient is φ = 299613524.

The previous prime is 449420263. The next prime is 449420317. The reversal of 449420289 is 982024944.

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 449420289 - 2⁸ = 449420033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 449420289.

It is not an unprimeable number, because it can be changed into a prime (449420239) 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, 74903379 + ... + 74903384.

It is an arithmetic number, because the mean of its divisors is an integer number (149806764).

Almost surely, 2^449420289 is an apocalyptic number.

It is an amenable number.

449420289 is a deficient number, since it is larger than the sum of its proper divisors (149806767).

449420289 is a wasteful number, since it uses less digits than its factorization.

449420289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149806766.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 449420289 is about 21199.5351128274. The cubic root of 449420289 is about 765.9802257960.

The spelling of 449420289 in words is "four hundred forty-nine million, four hundred twenty thousand, two hundred eighty-nine".