1424423209 has 4 divisors (see below), whose sum is σ = 1553916240. Its totient is φ = 1294930180.

The previous prime is 1424423207. The next prime is 1424423263. The reversal of 1424423209 is 9023244241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1424423209 - 2¹ = 1424423207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1424423201) 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, 64746499 + ... + 64746520.

It is an arithmetic number, because the mean of its divisors is an integer number (388479060).

Almost surely, 2^1424423209 is an apocalyptic number.

It is an amenable number.

1424423209 is a deficient number, since it is larger than the sum of its proper divisors (129493031).

1424423209 is a wasteful number, since it uses less digits than its factorization.

1424423209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129493030.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 1424423209 is about 37741.5316196892. The cubic root of 1424423209 is about 1125.1567081125.

The spelling of 1424423209 in words is "one billion, four hundred twenty-four million, four hundred twenty-three thousand, two hundred nine".