1722203250400 has 144 divisors (see below), whose sum is σ = 4277118746880. Its totient is φ = 676963008000.

The previous prime is 1722203250311. The next prime is 1722203250461. The reversal of 1722203250400 is 40523022271.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191202697 + ... + 191211703.

It is an arithmetic number, because the mean of its divisors is an integer number (29702213520).

Almost surely, 2^{1722203250400} is an apocalyptic number.

1722203250400 is a gapful number since it is divisible by the number (10) 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 1722203250400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2138559373440).

1722203250400 is an abundant number, since it is smaller than the sum of its proper divisors (2554915496480).

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

1722203250400 is a wasteful number, since it uses less digits than its factorization.

1722203250400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13137 (or 13124 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

Adding to 1722203250400 its reverse (40523022271), we get a palindrome (1762726272671).

The spelling of 1722203250400 in words is "one trillion, seven hundred twenty-two billion, two hundred three million, two hundred fifty thousand, four hundred".