401240043204 has 768 divisors, whose sum is σ = 1333346918400. Its totient is φ = 90594754560.

The previous prime is 401240043181. The next prime is 401240043263. The reversal of 401240043204 is 402340042104.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 2692886122 + ... + 2692886270.

It is an arithmetic number, because the mean of its divisors is an integer number (1736128800).

Almost surely, 2^401240043204 is an apocalyptic number.

401240043204 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401240043204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (666673459200).

401240043204 is an abundant number, since it is smaller than the sum of its proper divisors (932106875196).

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

401240043204 is a wasteful number, since it uses less digits than its factorization.

401240043204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 401240043204 its reverse (402340042104), we get a palindrome (803580085308).

The spelling of 401240043204 in words is "four hundred one billion, two hundred forty million, forty-three thousand, two hundred four".