434161321 has 4 divisors (see below), whose sum is σ = 473630544. Its totient is φ = 394692100.

The previous prime is 434161309. The next prime is 434161333. The reversal of 434161321 is 123161434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (434161309) and next prime (434161333).

It is not a de Polignac number, because 434161321 - 2⁷ = 434161193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434161121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19734595 + ... + 19734616.

It is an arithmetic number, because the mean of its divisors is an integer number (118407636).

Almost surely, 2^434161321 is an apocalyptic number.

It is an amenable number.

434161321 is a deficient number, since it is larger than the sum of its proper divisors (39469223).

434161321 is a wasteful number, since it uses less digits than its factorization.

434161321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39469222.

The product of its digits is 1728, while the sum is 25.

The square root of 434161321 is about 20836.5381241702. The cubic root of 434161321 is about 757.2112249085.

The spelling of 434161321 in words is "four hundred thirty-four million, one hundred sixty-one thousand, three hundred twenty-one".