4400521242 has 32 divisors (see below), whose sum is σ = 9490693632. Its totient is φ = 1352199744.

The previous prime is 4400521211. The next prime is 4400521243. The reversal of 4400521242 is 2421250044.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4400521243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21783 + ... + 96309.

It is an arithmetic number, because the mean of its divisors is an integer number (296584176).

Almost surely, 2^4400521242 is an apocalyptic number.

4400521242 is an abundant number, since it is smaller than the sum of its proper divisors (5090172390).

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

4400521242 is a wasteful number, since it uses less digits than its factorization.

4400521242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75302.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 4400521242 is about 66336.4247001600. The cubic root of 4400521242 is about 1638.7072454126.

Adding to 4400521242 its reverse (2421250044), we get a palindrome (6821771286).

The spelling of 4400521242 in words is "four billion, four hundred million, five hundred twenty-one thousand, two hundred forty-two".