440043730 has 16 divisors (see below), whose sum is σ = 905232960. Its totient is φ = 150872112.

The previous prime is 440043719. The next prime is 440043749. The reversal of 440043730 is 37340044.

It is a junction number, because it is equal to n+sod(n) for n = 440043695 and 440043704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3143100 + ... + 3143239.

It is an arithmetic number, because the mean of its divisors is an integer number (56577060).

Almost surely, 2^440043730 is an apocalyptic number.

440043730 is an abundant number, since it is smaller than the sum of its proper divisors (465189230).

440043730 is a wasteful number, since it uses less digits than its factorization.

440043730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6286353.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 440043730 is about 20977.2193104806. The cubic root of 440043730 is about 760.6156887586.

Adding to 440043730 its reverse (37340044), we get a palindrome (477383774).

The spelling of 440043730 in words is "four hundred forty million, forty-three thousand, seven hundred thirty".