388196388 has 36 divisors (see below), whose sum is σ = 1017620240. Its totient is φ = 129398472.

The previous prime is 388196383. The next prime is 388196401. The reversal of 388196388 is 883691883.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (388196383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198718 + ... + 200661.

Almost surely, 2^388196388 is an apocalyptic number.

It is an amenable number.

388196388 is an abundant number, since it is smaller than the sum of its proper divisors (629423852).

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

388196388 is a wasteful number, since it uses less digits than its factorization.

388196388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399398 (or 399384 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 388196388 is about 19702.7000180178. The cubic root of 388196388 is about 729.4863390939.

The spelling of 388196388 in words is "three hundred eighty-eight million, one hundred ninety-six thousand, three hundred eighty-eight".