388312 has 8 divisors (see below), whose sum is σ = 728100. Its totient is φ = 194152.

The previous prime is 388301. The next prime is 388313. The reversal of 388312 is 213883.

It is a tau number, because it is divible by the number of its divisors (8).

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388313) by changing a digit.

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 as a sum of consecutive naturals, namely, 24262 + ... + 24277.

2³⁸⁸³¹² is an apocalyptic number.

It is an amenable number.

388312 is a deficient number, since it is larger than the sum of its proper divisors (339788).

388312 is a wasteful number, since it uses less digits than its factorization.

388312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48545 (or 48541 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 388312 is about 623.1468526760. The cubic root of 388312 is about 72.9558750040.

The spelling of 388312 in words is "three hundred eighty-eight thousand, three hundred twelve".