4221145434 has 16 divisors (see below), whose sum is σ = 9209772000. Its totient is φ = 1279134960.

The previous prime is 4221145421. The next prime is 4221145477. The reversal of 4221145434 is 4345411224.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31978309 + ... + 31978440.

It is an arithmetic number, because the mean of its divisors is an integer number (575610750).

Almost surely, 2^4221145434 is an apocalyptic number.

4221145434 is an abundant number, since it is smaller than the sum of its proper divisors (4988626566).

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

4221145434 is a wasteful number, since it uses less digits than its factorization.

4221145434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63956765.

The product of its digits is 15360, while the sum is 30.

The square root of 4221145434 is about 64970.3427265087. The cubic root of 4221145434 is about 1616.1317852060.

Adding to 4221145434 its reverse (4345411224), we get a palindrome (8566556658).

The spelling of 4221145434 in words is "four billion, two hundred twenty-one million, one hundred forty-five thousand, four hundred thirty-four".