352021263440 has 240 divisors, whose sum is σ = 1041165027840. Its totient is φ = 108330393600.

The previous prime is 352021263421. The next prime is 352021263449. The reversal of 352021263440 is 44362120253.

It is a junction number, because it is equal to n+sod(n) for n = 352021263397 and 352021263406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352021263449) 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 47 ways as a sum of consecutive naturals, for example, 5320160 + ... + 5385920.

It is an arithmetic number, because the mean of its divisors is an integer number (4338187616).

Almost surely, 2^352021263440 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 352021263440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (520582513920).

352021263440 is an abundant number, since it is smaller than the sum of its proper divisors (689143764400).

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

352021263440 is a wasteful number, since it uses less digits than its factorization.

352021263440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65882 (or 65865 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 352021263440 its reverse (44362120253), we get a palindrome (396383383693).

The spelling of 352021263440 in words is "three hundred fifty-two billion, twenty-one million, two hundred sixty-three thousand, four hundred forty".