1434342421 has 2 divisors, whose sum is σ = 1434342422. Its totient is φ = 1434342420.

The previous prime is 1434342419. The next prime is 1434342527. The reversal of 1434342421 is 1242434341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1332615025 + 101727396 = 36505^2 + 10086^2 .

It is a cyclic number.

It is not a de Polignac number, because 1434342421 - 2¹ = 1434342419 is a prime.

Together with 1434342419, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1434342421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1434342121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 717171210 + 717171211.

It is an arithmetic number, because the mean of its divisors is an integer number (717171211).

Almost surely, 2^1434342421 is an apocalyptic number.

It is an amenable number.

1434342421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1434342421 is an equidigital number, since it uses as much as digits as its factorization.

1434342421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 28.

The square root of 1434342421 is about 37872.7134095248. The cubic root of 1434342421 is about 1127.7624087246.

Adding to 1434342421 its reverse (1242434341), we get a palindrome (2676776762).

The spelling of 1434342421 in words is "one billion, four hundred thirty-four million, three hundred forty-two thousand, four hundred twenty-one".