388530 has 32 divisors (see below), whose sum is σ = 1036800. Its totient is φ = 103536.

The previous prime is 388529. The next prime is 388541. The reversal of 388530 is 35883.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 388494 and 388503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 450 + ... + 989.

It is an arithmetic number, because the mean of its divisors is an integer number (32400).

2³⁸⁸⁵³⁰ is an apocalyptic number.

388530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

388530 is an abundant number, since it is smaller than the sum of its proper divisors (648270).

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

388530 is a wasteful number, since it uses less digits than its factorization.

388530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455 (or 1449 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 388530 is about 623.3217467729. The cubic root of 388530 is about 72.9695250289.

The spelling of 388530 in words is "three hundred eighty-eight thousand, five hundred thirty".