440014032420 has 48 divisors (see below), whose sum is σ = 1232259342720. Its totient is φ = 117316118016.

The previous prime is 440014032413. The next prime is 440014032427. The reversal of 440014032420 is 24230410044.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (440014032413) and next prime (440014032427).

It is a super-2 number, since 2×440014032420² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (440014032427) 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, 314725 + ... + 989484.

It is an arithmetic number, because the mean of its divisors is an integer number (25672069640).

Almost surely, 2^440014032420 is an apocalyptic number.

It is an amenable number.

440014032420 is an abundant number, since it is smaller than the sum of its proper divisors (792245310300).

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

440014032420 is a wasteful number, since it uses less digits than its factorization.

440014032420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309844 (or 1309842 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 440014032420 its reverse (24230410044), we get a palindrome (464244442464).

The spelling of 440014032420 in words is "four hundred forty billion, fourteen million, thirty-two thousand, four hundred twenty".