401003233220 has 36 divisors (see below), whose sum is σ = 858295506180. Its totient is φ = 157374831744.

The previous prime is 401003233199. The next prime is 401003233223. The reversal of 401003233220 is 22332300104.

It can be written as a sum of positive squares in 6 ways, for example, as 72373912576 + 328629320644 = 269024^2 + 573262^2 .

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 = 401003233192 and 401003233201.

It is not an unprimeable number, because it can be changed into a prime (401003233223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3512735 + ... + 3625094.

Almost surely, 2^401003233220 is an apocalyptic number.

It is an amenable number.

401003233220 is an abundant number, since it is smaller than the sum of its proper divisors (457292272960).

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

401003233220 is a wasteful number, since it uses less digits than its factorization.

401003233220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7137944 (or 7137889 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 401003233220 its reverse (22332300104), we get a palindrome (423335533324).

The spelling of 401003233220 in words is "four hundred one billion, three million, two hundred thirty-three thousand, two hundred twenty".