434042981 has 2 divisors, whose sum is σ = 434042982. Its totient is φ = 434042980.

The previous prime is 434042977. The next prime is 434043013. The reversal of 434042981 is 189240434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296356225 + 137686756 = 17215^2 + 11734^2 .

It is a cyclic number.

It is not a de Polignac number, because 434042981 - 2² = 434042977 is a prime.

It is a super-2 number, since 2×434042981² = 376786618710732722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434042381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217021490 + 217021491.

It is an arithmetic number, because the mean of its divisors is an integer number (217021491).

Almost surely, 2^434042981 is an apocalyptic number.

It is an amenable number.

434042981 is a deficient number, since it is larger than the sum of its proper divisors (1).

434042981 is an equidigital number, since it uses as much as digits as its factorization.

434042981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 434042981 is about 20833.6982074715. The cubic root of 434042981 is about 757.1424205917.

The spelling of 434042981 in words is "four hundred thirty-four million, forty-two thousand, nine hundred eighty-one".