40413013220 has 24 divisors (see below), whose sum is σ = 87793788600. Its totient is φ = 15607784192.

The previous prime is 40413013219. The next prime is 40413013279. The reversal of 40413013220 is 2231031404.

It can be written as a sum of positive squares in 4 ways, for example, as 8797156 + 40404216064 = 2966^2 + 201008^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 40413013192 and 40413013201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34838225 + ... + 34839384.

It is an arithmetic number, because the mean of its divisors is an integer number (3658074525).

Almost surely, 2^40413013220 is an apocalyptic number.

It is an amenable number.

40413013220 is an abundant number, since it is smaller than the sum of its proper divisors (47380775380).

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

40413013220 is a wasteful number, since it uses less digits than its factorization.

40413013220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69677647 (or 69677645 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 40413013220 its reverse (2231031404), we get a palindrome (42644044624).

The spelling of 40413013220 in words is "forty billion, four hundred thirteen million, thirteen thousand, two hundred twenty".