1424429809 has 4 divisors (see below), whose sum is σ = 1553923440. Its totient is φ = 1294936180.

The previous prime is 1424429701. The next prime is 1424429821. The reversal of 1424429809 is 9089244241.

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 1424429809 - 2⁷ = 1424429681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1424429879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64746799 + ... + 64746820.

It is an arithmetic number, because the mean of its divisors is an integer number (388480860).

Almost surely, 2^1424429809 is an apocalyptic number.

It is an amenable number.

1424429809 is a deficient number, since it is larger than the sum of its proper divisors (129493631).

1424429809 is a wasteful number, since it uses less digits than its factorization.

1424429809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129493630.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 1424429809 is about 37741.6190564210. The cubic root of 1424429809 is about 1125.1584458973.

It can be divided in two parts, 142442 and 9809, that added together give a palindrome (152251).

The spelling of 1424429809 in words is "one billion, four hundred twenty-four million, four hundred twenty-nine thousand, eight hundred nine".