401486311800 has 1152 divisors, whose sum is σ = 1724953881600. Its totient is φ = 85358085120.

The previous prime is 401486311711. The next prime is 401486311859. The reversal of 401486311800 is 8113684104.

It is a happy number.

401486311800 is a `hidden beast` number, since 4 + 0 + 1 + 4 + 8 + 631 + 18 + 0 + 0 = 666.

It is a super-2 number, since 2×401486311800² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 287 ways as a sum of consecutive naturals, for example, 225173709 + ... + 225175491.

It is an arithmetic number, because the mean of its divisors is an integer number (1497355800).

Almost surely, 2^401486311800 is an apocalyptic number.

401486311800 is a gapful number since it is divisible by the number (40) 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 401486311800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (862476940800).

401486311800 is an abundant number, since it is smaller than the sum of its proper divisors (1323467569800).

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

401486311800 is a wasteful number, since it uses less digits than its factorization.

401486311800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882 (or 1860 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

Adding to 401486311800 its reverse (8113684104), we get a palindrome (409599995904).

The spelling of 401486311800 in words is "four hundred one billion, four hundred eighty-six million, three hundred eleven thousand, eight hundred".