352521524023240 has 256 divisors, whose sum is σ = 934868978749440. Its totient is φ = 117944449920000.

The previous prime is 352521524023223. The next prime is 352521524023259. The reversal of 352521524023240 is 42320425125253.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 352521524023193 and 352521524023202.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9373808517 + ... + 9373846123.

It is an arithmetic number, because the mean of its divisors is an integer number (3651831948240).

Almost surely, 2^{352521524023240} 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 352521524023240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (467434489374720).

352521524023240 is an abundant number, since it is smaller than the sum of its proper divisors (582347454726200).

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

352521524023240 is a wasteful number, since it uses less digits than its factorization.

352521524023240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42924 (or 42920 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 352521524023240 its reverse (42320425125253), we get a palindrome (394841949148493).

The spelling of 352521524023240 in words is "three hundred fifty-two trillion, five hundred twenty-one billion, five hundred twenty-four million, twenty-three thousand, two hundred forty".