440424012 has 24 divisors (see below), whose sum is σ = 1174464256. Its totient is φ = 125835408.

The previous prime is 440424007. The next prime is 440424013. The reversal of 440424012 is 210424044.

It is a super-2 number, since 2×440424012² = 387946620692352288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 440424012.

It is not an unprimeable number, because it can be changed into a prime (440424013) 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 7 ways as a sum of consecutive naturals, for example, 2621488 + ... + 2621655.

Almost surely, 2^440424012 is an apocalyptic number.

440424012 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

440424012 is an abundant number, since it is smaller than the sum of its proper divisors (734040244).

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

440424012 is a wasteful number, since it uses less digits than its factorization.

440424012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5243157 (or 5243155 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 440424012 is about 20986.2815191258. The cubic root of 440424012 is about 760.8347315140.

Adding to 440424012 its reverse (210424044), we get a palindrome (650848056).

The spelling of 440424012 in words is "four hundred forty million, four hundred twenty-four thousand, twelve".