434240253 has 12 divisors (see below), whose sum is σ = 654507360. Its totient is φ = 276906696.

The previous prime is 434240249. The next prime is 434240341. The reversal of 434240253 is 352042434.

It is not a de Polignac number, because 434240253 - 2² = 434240249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434240203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1048683 + ... + 1049096.

It is an arithmetic number, because the mean of its divisors is an integer number (54542280).

Almost surely, 2^434240253 is an apocalyptic number.

It is an amenable number.

434240253 is a deficient number, since it is larger than the sum of its proper divisors (220267107).

434240253 is a wasteful number, since it uses less digits than its factorization.

434240253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097808 (or 2097805 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 434240253 is about 20838.4321147249. The cubic root of 434240253 is about 757.2571099838.

Adding to 434240253 its reverse (352042434), we get a palindrome (786282687).

The spelling of 434240253 in words is "four hundred thirty-four million, two hundred forty thousand, two hundred fifty-three".