440113830 has 32 divisors (see below), whose sum is σ = 1137525984. Its totient is φ = 108335616.

The previous prime is 440113813. The next prime is 440113837. The reversal of 440113830 is 38311044.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 440113830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440113837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563859 + ... + 564638.

It is an arithmetic number, because the mean of its divisors is an integer number (35547687).

Almost surely, 2^440113830 is an apocalyptic number.

440113830 is an abundant number, since it is smaller than the sum of its proper divisors (697412154).

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

440113830 is a wasteful number, since it uses less digits than its factorization.

440113830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128520.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 440113830 is about 20978.8901041023. The cubic root of 440113830 is about 760.6560759028.

Adding to 440113830 its reverse (38311044), we get a palindrome (478424874).

The spelling of 440113830 in words is "four hundred forty million, one hundred thirteen thousand, eight hundred thirty".