388315922500 has 225 divisors, whose sum is σ = 943237172955. Its totient is φ = 139834860000.

The previous prime is 388315922483. The next prime is 388315922531. The reversal of 388315922500 is 5229513883.

The square root of 388315922500 is 623150.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 30443968324 + 357871954176 = 174482^2 + 598224^2 .

It is an unprimeable number.

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 74 ways as a sum of consecutive naturals, for example, 3770057449 + ... + 3770057551.

Almost surely, 2^388315922500 is an apocalyptic number.

388315922500 is the 623150-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388315922500

388315922500 is an abundant number, since it is smaller than the sum of its proper divisors (554921250455).

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

388315922500 is an frugal number, since it uses more digits than its factorization.

388315922500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 388315922500 in words is "three hundred eighty-eight billion, three hundred fifteen million, nine hundred twenty-two thousand, five hundred".