388196390 has 16 divisors (see below), whose sum is σ = 699351408. Its totient is φ = 155145696.

The previous prime is 388196383. The next prime is 388196401. The reversal of 388196390 is 93691883.

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 7 ways as a sum of consecutive naturals, for example, 3872 + ... + 28131.

It is an arithmetic number, because the mean of its divisors is an integer number (43709463).

Almost surely, 2^388196390 is an apocalyptic number.

388196390 is a deficient number, since it is larger than the sum of its proper divisors (311155018).

388196390 is a wasteful number, since it uses less digits than its factorization.

388196390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33223.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 388196390 is about 19702.7000687723. The cubic root of 388196390 is about 729.4863403467.

The spelling of 388196390 in words is "three hundred eighty-eight million, one hundred ninety-six thousand, three hundred ninety".