434271681 has 48 divisors (see below), whose sum is σ = 684972288. Its totient is φ = 264076800.

The previous prime is 434271679. The next prime is 434271697. The reversal of 434271681 is 186172434.

It is not a de Polignac number, because 434271681 - 2¹ = 434271679 is a prime.

It is a super-2 number, since 2×434271681² = 377183785837131522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (434271601) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 941791 + ... + 942251.

It is an arithmetic number, because the mean of its divisors is an integer number (14270256).

Almost surely, 2^434271681 is an apocalyptic number.

It is an amenable number.

434271681 is a deficient number, since it is larger than the sum of its proper divisors (250700607).

434271681 is a wasteful number, since it uses less digits than its factorization.

434271681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662 (or 659 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 434271681 is about 20839.1861885247. The cubic root of 434271681 is about 757.2753782905.

It can be divided in two parts, 43 and 4271681, that added together give a palindrome (4271724).

The spelling of 434271681 in words is "four hundred thirty-four million, two hundred seventy-one thousand, six hundred eighty-one".