434442321 has 6 divisors (see below), whose sum is σ = 627527810. Its totient is φ = 289628208.

The previous prime is 434442319. The next prime is 434442439. The reversal of 434442321 is 123244434.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 387656721 + 46785600 = 19689^2 + 6840^2 .

It is not a de Polignac number, because 434442321 - 2¹ = 434442319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434442521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24135676 + ... + 24135693.

Almost surely, 2^434442321 is an apocalyptic number.

It is an amenable number.

434442321 is a deficient number, since it is larger than the sum of its proper divisors (193085489).

434442321 is a wasteful number, since it uses less digits than its factorization.

434442321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48271375 (or 48271372 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 434442321 is about 20843.2799962002. The cubic root of 434442321 is about 757.3745516534.

Adding to 434442321 its reverse (123244434), we get a palindrome (557686755).

It can be divided in two parts, 4344 and 42321, that added together give a triangular number (46665 = T₃₀₅).

The spelling of 434442321 in words is "four hundred thirty-four million, four hundred forty-two thousand, three hundred twenty-one".