440230423020 has 96 divisors (see below), whose sum is σ = 1250065994688. Its totient is φ = 115737034752.

The previous prime is 440230423013. The next prime is 440230423027. The reversal of 440230423020 is 20324032044.

It is an interprime number because it is at equal distance from previous prime (440230423013) and next prime (440230423027).

It is not an unprimeable number, because it can be changed into a prime (440230423027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10828972 + ... + 10869548.

It is an arithmetic number, because the mean of its divisors is an integer number (13021520778).

Almost surely, 2^440230423020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440230423020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (625032997344).

440230423020 is an abundant number, since it is smaller than the sum of its proper divisors (809835571668).

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

440230423020 is a wasteful number, since it uses less digits than its factorization.

440230423020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43139 (or 43137 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 440230423020 its reverse (20324032044), we get a palindrome (460554455064).

The spelling of 440230423020 in words is "four hundred forty billion, two hundred thirty million, four hundred twenty-three thousand, twenty".