401223331040 has 48 divisors (see below), whose sum is σ = 1083302996832. Its totient is φ = 137562284544.

The previous prime is 401223331013. The next prime is 401223331057. The reversal of 401223331040 is 40133322104.

It is a super-2 number, since 2×401223331040² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401223330997 and 401223331015.

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, 179116439 + ... + 179118678.

It is an arithmetic number, because the mean of its divisors is an integer number (22568812434).

Almost surely, 2^401223331040 is an apocalyptic number.

401223331040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401223331040 is an abundant number, since it is smaller than the sum of its proper divisors (682079665792).

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

401223331040 is a wasteful number, since it uses less digits than its factorization.

401223331040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358235139 (or 358235131 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 401223331040 its reverse (40133322104), we get a palindrome (441356653144).

The spelling of 401223331040 in words is "four hundred one billion, two hundred twenty-three million, three hundred thirty-one thousand, forty".