4243545234 has 128 divisors (see below), whose sum is σ = 10358784000. Its totient is φ = 1282526784.

The previous prime is 4243545221. The next prime is 4243545289. The reversal of 4243545234 is 4325453424.

4243545234 is a `hidden beast` number, since 42 + 43 + 54 + 523 + 4 = 666.

It is a super-2 number, since 2×4243545234² = 36015352306008229512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3778197 + ... + 3779319.

It is an arithmetic number, because the mean of its divisors is an integer number (80928000).

Almost surely, 2^4243545234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4243545234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5179392000).

4243545234 is an abundant number, since it is smaller than the sum of its proper divisors (6115238766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4243545234 is a wasteful number, since it uses less digits than its factorization.

4243545234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 1303 counting only the distinct ones).

The product of its digits is 230400, while the sum is 36.

The square root of 4243545234 is about 65142.4994454465. The cubic root of 4243545234 is about 1618.9854484293.

Adding to 4243545234 its reverse (4325453424), we get a palindrome (8568998658).

The spelling of 4243545234 in words is "four billion, two hundred forty-three million, five hundred forty-five thousand, two hundred thirty-four".