388156948 has 24 divisors (see below), whose sum is σ = 693894600. Its totient is φ = 189920640.

The previous prime is 388156943. The next prime is 388156961. The reversal of 388156948 is 849651883.

It can be written as a sum of positive squares in 4 ways, for example, as 10942864 + 377214084 = 3308^2 + 19422^2 .

It is a junction number, because it is equal to n+sod(n) for n = 388156895 and 388156904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388156943) by changing a digit.

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, 87078 + ... + 91426.

It is an arithmetic number, because the mean of its divisors is an integer number (28912275).

Almost surely, 2^388156948 is an apocalyptic number.

It is an amenable number.

388156948 is a deficient number, since it is larger than the sum of its proper divisors (305737652).

388156948 is a wasteful number, since it uses less digits than its factorization.

388156948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4827 (or 4825 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 52.

The square root of 388156948 is about 19701.6991145434. The cubic root of 388156948 is about 729.4616334582.

The spelling of 388156948 in words is "three hundred eighty-eight million, one hundred fifty-six thousand, nine hundred forty-eight".