4203320453540 has 72 divisors (see below), whose sum is σ = 9560771794728. Its totient is φ = 1551577896960.

The previous prime is 4203320453539. The next prime is 4203320453677. The reversal of 4203320453540 is 453540233024.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 2370540598336 + 1832779855204 = 1539656^2 + 1353802^2 .

It is a super-2 number, since 2×4203320453540² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4203320453540.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12546854 + ... + 12877506.

It is an arithmetic number, because the mean of its divisors is an integer number (132788497149).

Almost surely, 2^{4203320453540} 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 4203320453540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4780385897364).

4203320453540 is an abundant number, since it is smaller than the sum of its proper divisors (5357451341188).

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

4203320453540 is a wasteful number, since it uses less digits than its factorization.

4203320453540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334449 (or 334434 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 35.

Adding to 4203320453540 its reverse (453540233024), we get a palindrome (4656860686564).

The spelling of 4203320453540 in words is "four trillion, two hundred three billion, three hundred twenty million, four hundred fifty-three thousand, five hundred forty".