400052414500 has 96 divisors (see below), whose sum is σ = 893182058496. Its totient is φ = 156462192000.

The previous prime is 400052414491. The next prime is 400052414501. The reversal of 400052414500 is 5414250004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (400052414501) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 25536670 + ... + 25552330.

It is an arithmetic number, because the mean of its divisors is an integer number (9303979776).

Almost surely, 2^400052414500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400052414500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446591029248).

400052414500 is an abundant number, since it is smaller than the sum of its proper divisors (493129643996).

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

400052414500 is a wasteful number, since it uses less digits than its factorization.

400052414500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16814 (or 16802 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 400052414500 its reverse (5414250004), we get a palindrome (405466664504).

The spelling of 400052414500 in words is "four hundred billion, fifty-two million, four hundred fourteen thousand, five hundred".