440023040 has 96 divisors (see below), whose sum is σ = 1069089840. Its totient is φ = 173801472.

The previous prime is 440023037. The next prime is 440023043. The reversal of 440023040 is 40320044.

It is an interprime number because it is at equal distance from previous prime (440023037) and next prime (440023043).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440023043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 993059 + ... + 993501.

Almost surely, 2^440023040 is an apocalyptic number.

440023040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440023040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534544920).

440023040 is an abundant number, since it is smaller than the sum of its proper divisors (629066800).

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

440023040 is an equidigital number, since it uses as much as digits as its factorization.

440023040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 440023040 is about 20976.7261506652. The cubic root of 440023040 is about 760.6037676819.

Adding to 440023040 its reverse (40320044), we get a palindrome (480343084).

The spelling of 440023040 in words is "four hundred forty million, twenty-three thousand, forty".