388243296 has 72 divisors (see below), whose sum is σ = 1261797264. Its totient is φ = 110926080.

The previous prime is 388243279. The next prime is 388243301. The reversal of 388243296 is 692342883.

388243296 is a `hidden beast` number, since 388 + 243 + 29 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94275 + ... + 98306.

It is an arithmetic number, because the mean of its divisors is an integer number (17524962).

Almost surely, 2^388243296 is an apocalyptic number.

388243296 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

388243296 is an abundant number, since it is smaller than the sum of its proper divisors (873553968).

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

388243296 is a wasteful number, since it uses less digits than its factorization.

388243296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192604 (or 192593 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 388243296 is about 19703.8903772834. The cubic root of 388243296 is about 729.5157205857.

The spelling of 388243296 in words is "three hundred eighty-eight million, two hundred forty-three thousand, two hundred ninety-six".