4002404440 has 16 divisors (see below), whose sum is σ = 9005410080. Its totient is φ = 1600961760.

The previous prime is 4002404423. The next prime is 4002404459. The reversal of 4002404440 is 444042004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50030016 + ... + 50030095.

It is an arithmetic number, because the mean of its divisors is an integer number (562838130).

Almost surely, 2^4002404440 is an apocalyptic number.

4002404440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4002404440 is an abundant number, since it is smaller than the sum of its proper divisors (5003005640).

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

4002404440 is a wasteful number, since it uses less digits than its factorization.

4002404440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100060122 (or 100060118 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 4002404440 is about 63264.5591148788. The cubic root of 4002404440 is about 1587.7190558071.

Adding to 4002404440 its reverse (444042004), we get a palindrome (4446446444).

The spelling of 4002404440 in words is "four billion, two million, four hundred four thousand, four hundred forty".