401033040220 has 24 divisors (see below), whose sum is σ = 878785445664. Its totient is φ = 153438728256.

The previous prime is 401033040217. The next prime is 401033040251. The reversal of 401033040220 is 22040330104.

It is a super-2 number, since 2×401033040220² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435905019 + ... + 435905938.

It is an arithmetic number, because the mean of its divisors is an integer number (36616060236).

Almost surely, 2^401033040220 is an apocalyptic number.

It is an amenable number.

401033040220 is an abundant number, since it is smaller than the sum of its proper divisors (477752405444).

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

401033040220 is a wasteful number, since it uses less digits than its factorization.

401033040220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871810989 (or 871810987 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 401033040220 its reverse (22040330104), we get a palindrome (423073370324).

The spelling of 401033040220 in words is "four hundred one billion, thirty-three million, forty thousand, two hundred twenty".