1429889243 has 2 divisors, whose sum is σ = 1429889244. Its totient is φ = 1429889242.

The previous prime is 1429889233. The next prime is 1429889269. The reversal of 1429889243 is 3429889241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1429889243 - 2¹⁸ = 1429627099 is a prime.

It is a super-2 number, since 2×1429889243² = 4089166494494226098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1429889191 and 1429889200.

It is not a weakly prime, because it can be changed into another prime (1429889203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714944621 + 714944622.

It is an arithmetic number, because the mean of its divisors is an integer number (714944622).

Almost surely, 2^1429889243 is an apocalyptic number.

1429889243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1429889243 is an equidigital number, since it uses as much as digits as its factorization.

1429889243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 995328, while the sum is 50.

The square root of 1429889243 is about 37813.8763286707. The cubic root of 1429889243 is about 1126.5940840096.

The spelling of 1429889243 in words is "one billion, four hundred twenty-nine million, eight hundred eighty-nine thousand, two hundred forty-three".