463649449 has 4 divisors (see below), whose sum is σ = 490922964. Its totient is φ = 436375936.

The previous prime is 463649429. The next prime is 463649467. The reversal of 463649449 is 944946364.

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 173185600 + 290463849 = 13160^2 + 17043^2 .

It is a cyclic number.

It is not a de Polignac number, because 463649449 - 2⁷ = 463649321 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (463649429) 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, 13636732 + ... + 13636765.

It is an arithmetic number, because the mean of its divisors is an integer number (122730741).

Almost surely, 2^463649449 is an apocalyptic number.

It is an amenable number.

463649449 is a deficient number, since it is larger than the sum of its proper divisors (27273515).

463649449 is a wasteful number, since it uses less digits than its factorization.

463649449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27273514.

The product of its digits is 2239488, while the sum is 49.

The square root of 463649449 is about 21532.5207302814. The cubic root of 463649449 is about 773.9803164097.

The spelling of 463649449 in words is "four hundred sixty-three million, six hundred forty-nine thousand, four hundred forty-nine".