388220052870 has 192 divisors, whose sum is σ = 1096962048000. Its totient is φ = 94689471744.

The previous prime is 388220052853. The next prime is 388220052877. The reversal of 388220052870 is 78250022883.

388220052870 is a `hidden beast` number, since 38 + 8 + 2 + 20 + 0 + 528 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388220052877) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 194206131 + ... + 194208129.

It is an arithmetic number, because the mean of its divisors is an integer number (5713344000).

Almost surely, 2^388220052870 is an apocalyptic number.

388220052870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 388220052870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548481024000).

388220052870 is an abundant number, since it is smaller than the sum of its proper divisors (708741995130).

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

388220052870 is a wasteful number, since it uses less digits than its factorization.

388220052870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3459 (or 3456 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 388220052870 in words is "three hundred eighty-eight billion, two hundred twenty million, fifty-two thousand, eight hundred seventy".