434424421 has 8 divisors (see below), whose sum is σ = 449100288. Its totient is φ = 419790000.

The previous prime is 434424413. The next prime is 434424457. The reversal of 434424421 is 124424434.

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 434424421 - 2³ = 434424413 is a prime.

It is a super-2 number, since 2×434424421² = 377449155122370482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 434424421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434424461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11736 + ... + 31726.

It is an arithmetic number, because the mean of its divisors is an integer number (56137536).

Almost surely, 2^434424421 is an apocalyptic number.

It is an amenable number.

434424421 is a deficient number, since it is larger than the sum of its proper divisors (14675867).

434424421 is a wasteful number, since it uses less digits than its factorization.

434424421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20723.

The product of its digits is 12288, while the sum is 28.

The square root of 434424421 is about 20842.8505967874. The cubic root of 434424421 is about 757.3641496660.

Adding to 434424421 its reverse (124424434), we get a palindrome (558848855).

The spelling of 434424421 in words is "four hundred thirty-four million, four hundred twenty-four thousand, four hundred twenty-one".