1449291609 has 12 divisors (see below), whose sum is σ = 2170955696. Its totient is φ = 966194244.

The previous prime is 1449291589. The next prime is 1449291643. The reversal of 1449291609 is 9061929441.

1449291609 is a `hidden beast` number, since 14 + 4 + 9 + 29 + 1 + 609 = 666.

It is not a de Polignac number, because 1449291609 - 2⁹ = 1449291097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1449291659) 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 11 ways as a sum of consecutive naturals, for example, 2981839 + ... + 2982324.

Almost surely, 2^1449291609 is an apocalyptic number.

It is an amenable number.

1449291609 is a deficient number, since it is larger than the sum of its proper divisors (721664087).

1449291609 is an frugal number, since it uses more digits than its factorization.

1449291609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5964178 (or 5964166 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 1449291609 is about 38069.5627634466. The cubic root of 1449291609 is about 1131.6668456625. Note that the first 3 decimals are identical.

The spelling of 1449291609 in words is "one billion, four hundred forty-nine million, two hundred ninety-one thousand, six hundred nine".