1424647909 has 4 divisors (see below), whose sum is σ = 1425403980. Its totient is φ = 1423891840.

The previous prime is 1424647901. The next prime is 1424647919. The reversal of 1424647909 is 9097464241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9097464241 = 1289 ⋅7057769.

It can be written as a sum of positive squares in 2 ways, for example, as 1124596225 + 300051684 = 33535^2 + 17322^2 .

It is a cyclic number.

It is not a de Polignac number, because 1424647909 - 2³ = 1424647901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1424647901) 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 3 ways as a sum of consecutive naturals, for example, 375202 + ... + 378979.

It is an arithmetic number, because the mean of its divisors is an integer number (356350995).

Almost surely, 2^1424647909 is an apocalyptic number.

It is an amenable number.

1424647909 is a deficient number, since it is larger than the sum of its proper divisors (756071).

1424647909 is an equidigital number, since it uses as much as digits as its factorization.

1424647909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756070.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 1424647909 is about 37744.5083290272. The cubic root of 1424647909 is about 1125.2158687650.

The spelling of 1424647909 in words is "one billion, four hundred twenty-four million, six hundred forty-seven thousand, nine hundred nine".