1423434429 has 24 divisors (see below), whose sum is σ = 2179227960. Its totient is φ = 892228608.

The previous prime is 1423434421. The next prime is 1423434431. The reversal of 1423434429 is 9244343241.

It can be written as a sum of positive squares in 4 ways, for example, as 2295225 + 1421139204 = 1515^2 + 37698^2 .

It is not a de Polignac number, because 1423434429 - 2³ = 1423434421 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1423434393 and 1423434402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423434421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166737 + ... + 175065.

It is an arithmetic number, because the mean of its divisors is an integer number (90801165).

Almost surely, 2^1423434429 is an apocalyptic number.

It is an amenable number.

1423434429 is a deficient number, since it is larger than the sum of its proper divisors (755793531).

1423434429 is a wasteful number, since it uses less digits than its factorization.

1423434429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9469 (or 9466 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 1423434429 is about 37728.4299832368. The cubic root of 1423434429 is about 1124.8963009602.

The spelling of 1423434429 in words is "one billion, four hundred twenty-three million, four hundred thirty-four thousand, four hundred twenty-nine".