434420381 has 2 divisors, whose sum is σ = 434420382. Its totient is φ = 434420380.

The previous prime is 434420369. The next prime is 434420449. The reversal of 434420381 is 183024434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298114756 + 136305625 = 17266^2 + 11675^2 .

It is a cyclic number.

It is not a de Polignac number, because 434420381 - 2¹⁸ = 434158237 is a prime.

It is a super-2 number, since 2×434420381² = 377442134856370322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434420281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217210190 + 217210191.

It is an arithmetic number, because the mean of its divisors is an integer number (217210191).

Almost surely, 2^434420381 is an apocalyptic number.

It is an amenable number.

434420381 is a deficient number, since it is larger than the sum of its proper divisors (1).

434420381 is an equidigital number, since it uses as much as digits as its factorization.

434420381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 434420381 is about 20842.7536808359. The cubic root of 434420381 is about 757.3618019153.

The spelling of 434420381 in words is "four hundred thirty-four million, four hundred twenty thousand, three hundred eighty-one".