440422040 has 16 divisors (see below), whose sum is σ = 990949680. Its totient is φ = 176168800.

The previous prime is 440422019. The next prime is 440422049. The reversal of 440422040 is 40224044.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440422049) 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 3 ways as a sum of consecutive naturals, for example, 5505236 + ... + 5505315.

It is an arithmetic number, because the mean of its divisors is an integer number (61934355).

Almost surely, 2^440422040 is an apocalyptic number.

440422040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440422040 is an abundant number, since it is smaller than the sum of its proper divisors (550527640).

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

440422040 is a wasteful number, since it uses less digits than its factorization.

440422040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11010562 (or 11010558 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 440422040 is about 20986.2345360000. The cubic root of 440422040 is about 760.8335959656.

Adding to 440422040 its reverse (40224044), we get a palindrome (480646084).

The spelling of 440422040 in words is "four hundred forty million, four hundred twenty-two thousand, forty".