534434021 has 4 divisors (see below), whose sum is σ = 583018944. Its totient is φ = 485849100.

The previous prime is 534433997. The next prime is 534434059. The reversal of 534434021 is 120434435.

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 a de Polignac number, because none of the positive numbers 2^k-534434021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534430021) 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, 24292445 + ... + 24292466.

It is an arithmetic number, because the mean of its divisors is an integer number (145754736).

Almost surely, 2^534434021 is an apocalyptic number.

It is an amenable number.

534434021 is a deficient number, since it is larger than the sum of its proper divisors (48584923).

534434021 is a wasteful number, since it uses less digits than its factorization.

534434021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48584922.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 534434021 is about 23117.8290719522. The cubic root of 534434021 is about 811.5177664579.

Adding to 534434021 its reverse (120434435), we get a palindrome (654868456).

The spelling of 534434021 in words is "five hundred thirty-four million, four hundred thirty-four thousand, twenty-one".