434323021 has 8 divisors (see below), whose sum is σ = 501678144. Its totient is φ = 371613120.

The previous prime is 434322997. The next prime is 434323027. The reversal of 434323021 is 120323434.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 434323021 - 2⁷ = 434322893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 434322983 and 434323001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434323027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1161105 + ... + 1161478.

It is an arithmetic number, because the mean of its divisors is an integer number (62709768).

Almost surely, 2^434323021 is an apocalyptic number.

It is an amenable number.

434323021 is a deficient number, since it is larger than the sum of its proper divisors (67355123).

434323021 is a wasteful number, since it uses less digits than its factorization.

434323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322611.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 434323021 is about 20840.4179660582. The cubic root of 434323021 is about 757.3052190466.

Adding to 434323021 its reverse (120323434), we get a palindrome (554646455).

The spelling of 434323021 in words is "four hundred thirty-four million, three hundred twenty-three thousand, twenty-one".