388230816 has 48 divisors (see below), whose sum is σ = 1030579200. Its totient is φ = 127953408.

The previous prime is 388230809. The next prime is 388230827. The reversal of 388230816 is 618032883.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14176 + ... + 31263.

It is an arithmetic number, because the mean of its divisors is an integer number (21470400).

Almost surely, 2^388230816 is an apocalyptic number.

It is an amenable number.

388230816 is an abundant number, since it is smaller than the sum of its proper divisors (642348384).

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

388230816 is a wasteful number, since it uses less digits than its factorization.

388230816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45541 (or 45533 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 388230816 is about 19703.5736860093. The cubic root of 388230816 is about 729.5079037916.

The spelling of 388230816 in words is "three hundred eighty-eight million, two hundred thirty thousand, eight hundred sixteen".