320241020440 has 32 divisors (see below), whose sum is σ = 786046142160. Its totient is φ = 116451280000.

The previous prime is 320241020423. The next prime is 320241020503. The reversal of 320241020440 is 44020142023.

It is a happy number.

It is a super-2 number, since 2×320241020440² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363909811 + ... + 363910690.

Almost surely, 2^320241020440 is an apocalyptic number.

It is an amenable number.

320241020440 is an abundant number, since it is smaller than the sum of its proper divisors (465805121720).

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

320241020440 is a wasteful number, since it uses less digits than its factorization.

320241020440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727820523 (or 727820519 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 320241020440 its reverse (44020142023), we get a palindrome (364261162463).

The spelling of 320241020440 in words is "three hundred twenty billion, two hundred forty-one million, twenty thousand, four hundred forty".