401440101000 has 64 divisors (see below), whose sum is σ = 1252493124480. Its totient is φ = 107050692800.

The previous prime is 401440100951. The next prime is 401440101001. The reversal of 401440101000 is 101044104.

It is a super-2 number, since 2×401440101000² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (401440101001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66903684 + ... + 66909683.

It is an arithmetic number, because the mean of its divisors is an integer number (19570205070).

Almost surely, 2^401440101000 is an apocalyptic number.

401440101000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401440101000 is an abundant number, since it is smaller than the sum of its proper divisors (851053023480).

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

401440101000 is a wasteful number, since it uses less digits than its factorization.

401440101000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133813391 (or 133813377 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 401440101000 its reverse (101044104), we get a palindrome (401541145104).

The spelling of 401440101000 in words is "four hundred one billion, four hundred forty million, one hundred one thousand".