434230143421 has 16 divisors (see below), whose sum is σ = 461719093104. Its totient is φ = 406958505984.

The previous prime is 434230143359. The next prime is 434230143437. The reversal of 434230143421 is 124341032434.

It can be written as a sum of positive squares in 8 ways, for example, as 166308996100 + 267921147321 = 407810^2 + 517611^2 .

It is a cyclic number.

It is not a de Polignac number, because 434230143421 - 2¹⁹ = 434229619133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434230143491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14197081 + ... + 14227633.

It is an arithmetic number, because the mean of its divisors is an integer number (28857443319).

Almost surely, 2^434230143421 is an apocalyptic number.

It is an amenable number.

434230143421 is a deficient number, since it is larger than the sum of its proper divisors (27488949683).

434230143421 is a wasteful number, since it uses less digits than its factorization.

434230143421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34080.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 434230143421 its reverse (124341032434), we get a palindrome (558571175855).

The spelling of 434230143421 in words is "four hundred thirty-four billion, two hundred thirty million, one hundred forty-three thousand, four hundred twenty-one".