4013444442 has 64 divisors (see below), whose sum is σ = 9679057920. Its totient is φ = 1083798144.

The previous prime is 4013444417. The next prime is 4013444447. The reversal of 4013444442 is 2444443104.

It is a super-2 number, since 2×4013444442² = 32215472578041382728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4013444447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 347838 + ... + 359190.

It is an arithmetic number, because the mean of its divisors is an integer number (151235280).

Almost surely, 2^4013444442 is an apocalyptic number.

4013444442 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 4013444442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4839528960).

4013444442 is an abundant number, since it is smaller than the sum of its proper divisors (5665613478).

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

4013444442 is a wasteful number, since it uses less digits than its factorization.

4013444442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11827.

The product of its (nonzero) digits is 24576, while the sum is 30.

The square root of 4013444442 is about 63351.7516884892. The cubic root of 4013444442 is about 1589.1775399094.

Adding to 4013444442 its reverse (2444443104), we get a palindrome (6457887546).

The spelling of 4013444442 in words is "four billion, thirteen million, four hundred forty-four thousand, four hundred forty-two".