388464180 has 96 divisors (see below), whose sum is σ = 1183206528. Its totient is φ = 94656000.

The previous prime is 388464169. The next prime is 388464187. The reversal of 388464180 is 81464883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388464187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76315 + ... + 81245.

It is an arithmetic number, because the mean of its divisors is an integer number (12325068).

Almost surely, 2^388464180 is an apocalyptic number.

388464180 is a gapful number since it is divisible by the number (30) 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 388464180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (591603264).

388464180 is an abundant number, since it is smaller than the sum of its proper divisors (794742348).

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

388464180 is a wasteful number, since it uses less digits than its factorization.

388464180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057 (or 5055 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 388464180 is about 19709.4946662770. The cubic root of 388464180 is about 729.6540426146.

The spelling of 388464180 in words is "three hundred eighty-eight million, four hundred sixty-four thousand, one hundred eighty".