449146969 has 4 divisors (see below), whose sum is σ = 449210880. Its totient is φ = 449083060.

The previous prime is 449146961. The next prime is 449147009. The reversal of 449146969 is 969641944.

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 449146969 - 2³ = 449146961 is a prime.

It is a super-2 number, since 2×449146969² = 403465999523773922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449146961) 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, 19897 + ... + 35974.

It is an arithmetic number, because the mean of its divisors is an integer number (112302720).

Almost surely, 2^449146969 is an apocalyptic number.

It is an amenable number.

449146969 is a deficient number, since it is larger than the sum of its proper divisors (63911).

449146969 is an equidigital number, since it uses as much as digits as its factorization.

449146969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63910.

The product of its digits is 1679616, while the sum is 52.

The square root of 449146969 is about 21193.0877646463. The cubic root of 449146969 is about 765.8249144791.

The spelling of 449146969 in words is "four hundred forty-nine million, one hundred forty-six thousand, nine hundred sixty-nine".