388321472 has 84 divisors (see below), whose sum is σ = 977959944. Its totient is φ = 151280640.

The previous prime is 388321441. The next prime is 388321477. The reversal of 388321472 is 274123883.

It is not an unprimeable number, because it can be changed into a prime (388321477) 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 in 11 ways as a sum of consecutive naturals, for example, 28868 + ... + 40124.

Almost surely, 2^388321472 is an apocalyptic number.

388321472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388321472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488979972).

388321472 is an abundant number, since it is smaller than the sum of its proper divisors (589638472).

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

388321472 is a wasteful number, since it uses less digits than its factorization.

388321472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11294 (or 11277 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 388321472 is about 19705.8740481106. The cubic root of 388321472 is about 729.5646819751.

It can be divided in two parts, 38832 and 1472, that added together give a palindrome (40304).

The spelling of 388321472 in words is "three hundred eighty-eight million, three hundred twenty-one thousand, four hundred seventy-two".