4015442440 has 32 divisors (see below), whose sum is σ = 9047376000. Its totient is φ = 1603931584.

The previous prime is 4015442437. The next prime is 4015442441. The reversal of 4015442440 is 442445104.

4015442440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×4015442440² = 32247555977906307200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4015442399 and 4015442408.

It is not an unprimeable number, because it can be changed into a prime (4015442441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41050 + ... + 98569.

It is an arithmetic number, because the mean of its divisors is an integer number (282730500).

Almost surely, 2^4015442440 is an apocalyptic number.

4015442440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4015442440 is an abundant number, since it is smaller than the sum of its proper divisors (5031933560).

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

4015442440 is a wasteful number, since it uses less digits than its factorization.

4015442440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140349 (or 140345 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 4015442440 is about 63367.5188089292. The cubic root of 4015442440 is about 1589.4412075929.

Adding to 4015442440 its reverse (442445104), we get a palindrome (4457887544).

The spelling of 4015442440 in words is "four billion, fifteen million, four hundred forty-two thousand, four hundred forty".