434042381 has 2 divisors, whose sum is σ = 434042382. Its totient is φ = 434042380.

The previous prime is 434042369. The next prime is 434042437. The reversal of 434042381 is 183240434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 389272900 + 44769481 = 19730^2 + 6691^2 .

It is a cyclic number.

It is not a de Polignac number, because 434042381 - 2¹⁰ = 434041357 is a prime.

It is a super-2 number, since 2×434042381² = 376785577008298322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434042341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217021190 + 217021191.

It is an arithmetic number, because the mean of its divisors is an integer number (217021191).

Almost surely, 2^434042381 is an apocalyptic number.

It is an amenable number.

434042381 is a deficient number, since it is larger than the sum of its proper divisors (1).

434042381 is an equidigital number, since it uses as much as digits as its factorization.

434042381 is an evil number, because the sum of its binary digits is even.

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

The square root of 434042381 is about 20833.6838077187. The cubic root of 434042381 is about 757.1420717126.

The spelling of 434042381 in words is "four hundred thirty-four million, forty-two thousand, three hundred eighty-one".