440004012 has 24 divisors (see below), whose sum is σ = 1173344256. Its totient is φ = 125715408.

The previous prime is 440004011. The next prime is 440004023. The reversal of 440004012 is 210400044.

It is a super-2 number, since 2×440004012² = 387207061152192288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 440003982 and 440004000.

It is not an unprimeable number, because it can be changed into a prime (440004011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2618988 + ... + 2619155.

It is an arithmetic number, because the mean of its divisors is an integer number (48889344).

Almost surely, 2^440004012 is an apocalyptic number.

440004012 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

440004012 is an abundant number, since it is smaller than the sum of its proper divisors (733340244).

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

440004012 is a wasteful number, since it uses less digits than its factorization.

440004012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5238157 (or 5238155 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 440004012 is about 20976.2725954827. The cubic root of 440004012 is about 760.5928038794.

Adding to 440004012 its reverse (210400044), we get a palindrome (650404056).

The spelling of 440004012 in words is "four hundred forty million, four thousand, twelve".