388446 has 16 divisors (see below), whose sum is σ = 785808. Its totient is φ = 128000.

The previous prime is 388403. The next prime is 388459. The reversal of 388446 is 644883.

It is a congruent number.

It is an unprimeable number.

388446 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 286 + ... + 926.

It is an arithmetic number, because the mean of its divisors is an integer number (49113).

2³⁸⁸⁴⁴⁶ is an apocalyptic number.

388446 is an abundant number, since it is smaller than the sum of its proper divisors (397362).

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

388446 is a wasteful number, since it uses less digits than its factorization.

388446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747.

The product of its digits is 18432, while the sum is 33.

The square root of 388446 is about 623.2543621989. The cubic root of 388446 is about 72.9642659911.

The spelling of 388446 in words is "three hundred eighty-eight thousand, four hundred forty-six".