449000506 has 4 divisors (see below), whose sum is σ = 673500762. Its totient is φ = 224500252.

The previous prime is 449000491. The next prime is 449000509. The reversal of 449000506 is 605000944.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 425390625 + 23609881 = 20625^2 + 4859^2 .

It is not an unprimeable number, because it can be changed into a prime (449000509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112250125 + ... + 112250128.

Almost surely, 2^449000506 is an apocalyptic number.

449000506 is the 13402-nd centered pentagonal number.

449000506 is a deficient number, since it is larger than the sum of its proper divisors (224500256).

449000506 is a wasteful number, since it uses less digits than its factorization.

449000506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224500255.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 449000506 is about 21189.6320402219. The cubic root of 449000506 is about 765.7416624359.

The spelling of 449000506 in words is "four hundred forty-nine million, five hundred six", and thus it is an aban number.