400020240224 has 24 divisors (see below), whose sum is σ = 859134380328. Its totient is φ = 181827381760.

The previous prime is 400020240187. The next prime is 400020240241. The reversal of 400020240224 is 422042020004.

It is a junction number, because it is equal to n+sod(n) for n = 400020240196 and 400020240205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568210217 + ... + 568210920.

It is an arithmetic number, because the mean of its divisors is an integer number (35797265847).

Almost surely, 2^400020240224 is an apocalyptic number.

400020240224 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

400020240224 is an abundant number, since it is smaller than the sum of its proper divisors (459114140104).

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

400020240224 is a wasteful number, since it uses less digits than its factorization.

400020240224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136421158 (or 1136421150 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 400020240224 its reverse (422042020004), we get a palindrome (822062260228).

The spelling of 400020240224 in words is "four hundred billion, twenty million, two hundred forty thousand, two hundred twenty-four".