388626 has 32 divisors (see below), whose sum is σ = 936960. Its totient is φ = 104976.

The previous prime is 388621. The next prime is 388651. The reversal of 388626 is 626883.

It is not an unprimeable number, because it can be changed into a prime (388621) by changing a digit.

388626 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555 + ... + 1041.

It is an arithmetic number, because the mean of its divisors is an integer number (29280).

2³⁸⁸⁶²⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (468480).

388626 is an abundant number, since it is smaller than the sum of its proper divisors (548334).

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

388626 is a wasteful number, since it uses less digits than its factorization.

388626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518.

The product of its digits is 13824, while the sum is 33.

The square root of 388626 is about 623.3987487957. The cubic root of 388626 is about 72.9755344298.

The spelling of 388626 in words is "three hundred eighty-eight thousand, six hundred twenty-six".