1429876289 has 4 divisors (see below), whose sum is σ = 1437776340. Its totient is φ = 1421976240.

The previous prime is 1429876267. The next prime is 1429876319. The reversal of 1429876289 is 9826789241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 469372225 + 960504064 = 21665^2 + 30992^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1429876289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1429876249) 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, 3949754 + ... + 3950115.

It is an arithmetic number, because the mean of its divisors is an integer number (359444085).

Almost surely, 2^1429876289 is an apocalyptic number.

It is an amenable number.

1429876289 is a deficient number, since it is larger than the sum of its proper divisors (7900051).

1429876289 is an equidigital number, since it uses as much as digits as its factorization.

1429876289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7900050.

The product of its digits is 3483648, while the sum is 56.

The square root of 1429876289 is about 37813.7050419554. The cubic root of 1429876289 is about 1126.5906818944.

The spelling of 1429876289 in words is "one billion, four hundred twenty-nine million, eight hundred seventy-six thousand, two hundred eighty-nine".