4221535044 has 48 divisors (see below), whose sum is σ = 10030470912. Its totient is φ = 1381642272.

The previous prime is 4221535039. The next prime is 4221535057. The reversal of 4221535044 is 4405351224.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149347 + ... + 175349.

It is an arithmetic number, because the mean of its divisors is an integer number (208968144).

Almost surely, 2^4221535044 is an apocalyptic number.

It is an amenable number.

4221535044 is an abundant number, since it is smaller than the sum of its proper divisors (5808935868).

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

4221535044 is a wasteful number, since it uses less digits than its factorization.

4221535044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26256 (or 26254 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 4221535044 is about 64973.3410253775. The cubic root of 4221535044 is about 1616.1815064443.

Adding to 4221535044 its reverse (4405351224), we get a palindrome (8626886268).

The spelling of 4221535044 in words is "four billion, two hundred twenty-one million, five hundred thirty-five thousand, forty-four".