388288244 has 12 divisors (see below), whose sum is σ = 693962304. Its totient is φ = 190013304.

The previous prime is 388288223. The next prime is 388288283. The reversal of 388288244 is 442882883.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1032494 + ... + 1032869.

It is an arithmetic number, because the mean of its divisors is an integer number (57830192).

Almost surely, 2^388288244 is an apocalyptic number.

It is an amenable number.

388288244 is a deficient number, since it is larger than the sum of its proper divisors (305674060).

388288244 is a wasteful number, since it uses less digits than its factorization.

388288244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065414 (or 2065412 counting only the distinct ones).

The product of its digits is 786432, while the sum is 47.

The square root of 388288244 is about 19705.0309312115. The cubic root of 388288244 is about 729.5438721835.

The spelling of 388288244 in words is "three hundred eighty-eight million, two hundred eighty-eight thousand, two hundred forty-four".