1429874389 has 2 divisors, whose sum is σ = 1429874390. Its totient is φ = 1429874388.

The previous prime is 1429874387. The next prime is 1429874423. The reversal of 1429874389 is 9834789241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1426572900 + 3301489 = 37770^2 + 1817^2 .

It is an emirp because it is prime and its reverse (9834789241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1429874389 - 2¹ = 1429874387 is a prime.

Together with 1429874387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1429874387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714937194 + 714937195.

It is an arithmetic number, because the mean of its divisors is an integer number (714937195).

Almost surely, 2^1429874389 is an apocalyptic number.

It is an amenable number.

1429874389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1429874389 is an equidigital number, since it uses as much as digits as its factorization.

1429874389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 55.

The square root of 1429874389 is about 37813.6799187807. The cubic root of 1429874389 is about 1126.5901828947.

The spelling of 1429874389 in words is "one billion, four hundred twenty-nine million, eight hundred seventy-four thousand, three hundred eighty-nine".