434420491 has 2 divisors, whose sum is σ = 434420492. Its totient is φ = 434420490.

The previous prime is 434420449. The next prime is 434420537. The reversal of 434420491 is 194024434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 434420491 - 2¹³ = 434412299 is a prime.

It is not a weakly prime, because it can be changed into another prime (434420191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217210245 + 217210246.

It is an arithmetic number, because the mean of its divisors is an integer number (217210246).

Almost surely, 2^434420491 is an apocalyptic number.

434420491 is a deficient number, since it is larger than the sum of its proper divisors (1).

434420491 is an equidigital number, since it uses as much as digits as its factorization.

434420491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 434420491 is about 20842.7563196426. The cubic root of 434420491 is about 757.3618658394.

The spelling of 434420491 in words is "four hundred thirty-four million, four hundred twenty thousand, four hundred ninety-one".