388632628 has 12 divisors (see below), whose sum is σ = 683907840. Its totient is φ = 193230392.

The previous prime is 388632577. The next prime is 388632637. The reversal of 388632628 is 826236883.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270676 + ... + 272107.

It is an arithmetic number, because the mean of its divisors is an integer number (56992320).

Almost surely, 2^388632628 is an apocalyptic number.

It is an amenable number.

388632628 is a deficient number, since it is larger than the sum of its proper divisors (295275212).

388632628 is a wasteful number, since it uses less digits than its factorization.

388632628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542966 (or 542964 counting only the distinct ones).

The product of its digits is 663552, while the sum is 46.

The square root of 388632628 is about 19713.7674735196. The cubic root of 388632628 is about 729.7594929232.

The spelling of 388632628 in words is "three hundred eighty-eight million, six hundred thirty-two thousand, six hundred twenty-eight".