1214488809 has 40 divisors (see below), whose sum is σ = 1847998152. Its totient is φ = 794707200.

The previous prime is 1214488771. The next prime is 1214488813. The reversal of 1214488809 is 9088844121.

1214488809 is a `hidden beast` number, since 121 + 448 + 8 + 80 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 751034025 + 463454784 = 27405^2 + 21528^2 .

It is not a de Polignac number, because 1214488809 - 2¹¹ = 1214486761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1214488819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1732159 + ... + 1732859.

Almost surely, 2^1214488809 is an apocalyptic number.

It is an amenable number.

1214488809 is a deficient number, since it is larger than the sum of its proper divisors (633509343).

1214488809 is an equidigital number, since it uses as much as digits as its factorization.

1214488809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079 (or 1070 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The square root of 1214488809 is about 34849.5166250552. The cubic root of 1214488809 is about 1066.9183199968.

The spelling of 1214488809 in words is "one billion, two hundred fourteen million, four hundred eighty-eight thousand, eight hundred nine".