434134021 has 4 divisors (see below), whose sum is σ = 456983200. Its totient is φ = 411284844.

The previous prime is 434134003. The next prime is 434134069. The reversal of 434134021 is 120431434.

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 cyclic number.

It is not a de Polignac number, because 434134021 - 2¹⁵ = 434101253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 434133983 and 434134001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434134091) 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, 11424561 + ... + 11424598.

It is an arithmetic number, because the mean of its divisors is an integer number (114245800).

Almost surely, 2^434134021 is an apocalyptic number.

It is an amenable number.

434134021 is a deficient number, since it is larger than the sum of its proper divisors (22849179).

434134021 is a wasteful number, since it uses less digits than its factorization.

434134021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22849178.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 434134021 is about 20835.8830146457. The cubic root of 434134021 is about 757.1953534657.

Adding to 434134021 its reverse (120431434), we get a palindrome (554565455).

The spelling of 434134021 in words is "four hundred thirty-four million, one hundred thirty-four thousand, twenty-one".