388511216 has 20 divisors (see below), whose sum is σ = 785469072. Its totient is φ = 185809536.

The previous prime is 388511213. The next prime is 388511237. The reversal of 388511216 is 612115883.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388511213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527501 + ... + 528236.

Almost surely, 2^388511216 is an apocalyptic number.

It is an amenable number.

388511216 is an abundant number, since it is smaller than the sum of its proper divisors (396957856).

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

388511216 is a wasteful number, since it uses less digits than its factorization.

388511216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055768 (or 1055762 counting only the distinct ones).

The product of its digits is 11520, while the sum is 35.

The square root of 388511216 is about 19710.6878621726. The cubic root of 388511216 is about 729.6834907372.

The spelling of 388511216 in words is "three hundred eighty-eight million, five hundred eleven thousand, two hundred sixteen".