1433340421 has 2 divisors, whose sum is σ = 1433340422. Its totient is φ = 1433340420.

The previous prime is 1433340379. The next prime is 1433340451. The reversal of 1433340421 is 1240433341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1422044100 + 11296321 = 37710^2 + 3361^2 .

It is a cyclic number.

It is not a de Polignac number, because 1433340421 - 2¹¹ = 1433338373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1433340451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 716670210 + 716670211.

It is an arithmetic number, because the mean of its divisors is an integer number (716670211).

Almost surely, 2^1433340421 is an apocalyptic number.

It is an amenable number.

1433340421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1433340421 is an equidigital number, since it uses as much as digits as its factorization.

1433340421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1433340421 is about 37859.4825770242. The cubic root of 1433340421 is about 1127.4997375627.

Adding to 1433340421 its reverse (1240433341), we get a palindrome (2673773762).

The spelling of 1433340421 in words is "one billion, four hundred thirty-three million, three hundred forty thousand, four hundred twenty-one".