434423253 has 32 divisors (see below), whose sum is σ = 687173760. Its totient is φ = 241090560.

The previous prime is 434423207. The next prime is 434423257. The reversal of 434423253 is 352324434.

It is not a de Polignac number, because 434423253 - 2¹⁷ = 434292181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 434423253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434423257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10293 + ... + 31221.

It is an arithmetic number, because the mean of its divisors is an integer number (21474180).

Almost surely, 2^434423253 is an apocalyptic number.

It is an amenable number.

434423253 is a deficient number, since it is larger than the sum of its proper divisors (252750507).

434423253 is a wasteful number, since it uses less digits than its factorization.

434423253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20997.

The product of its digits is 34560, while the sum is 30.

The square root of 434423253 is about 20842.8225775685. The cubic root of 434423253 is about 757.3634709118.

Adding to 434423253 its reverse (352324434), we get a palindrome (786747687).

The spelling of 434423253 in words is "four hundred thirty-four million, four hundred twenty-three thousand, two hundred fifty-three".