524023320400 has 120 divisors (see below), whose sum is σ = 1334730286080. Its totient is φ = 197026682880.

The previous prime is 524023320397. The next prime is 524023320409. The reversal of 524023320400 is 4023320425.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (524023320409) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 5302641 + ... + 5400559.

It is an arithmetic number, because the mean of its divisors is an integer number (11122752384).

Almost surely, 2^524023320400 is an apocalyptic number.

524023320400 is a gapful number since it is divisible by the number (50) 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 524023320400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (667365143040).

524023320400 is an abundant number, since it is smaller than the sum of its proper divisors (810706965680).

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

524023320400 is a wasteful number, since it uses less digits than its factorization.

524023320400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98741 (or 98730 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 524023320400 its sum of digits (25), we get a palindrome (524023320425).

Adding to 524023320400 its reverse (4023320425), we get a palindrome (528046640825).

The spelling of 524023320400 in words is "five hundred twenty-four billion, twenty-three million, three hundred twenty thousand, four hundred".