388541280 has 48 divisors (see below), whose sum is σ = 1223906544. Its totient is φ = 103610880.

The previous prime is 388541267. The next prime is 388541303. The reversal of 388541280 is 82145883.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable 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, 404251 + ... + 405210.

It is an arithmetic number, because the mean of its divisors is an integer number (25498053).

Almost surely, 2^388541280 is an apocalyptic number.

388541280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

388541280 is an abundant number, since it is smaller than the sum of its proper divisors (835365264).

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

388541280 is a wasteful number, since it uses less digits than its factorization.

388541280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809479 (or 809471 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 388541280 is about 19711.4504793534. The cubic root of 388541280 is about 729.7023118487.

The spelling of 388541280 in words is "three hundred eighty-eight million, five hundred forty-one thousand, two hundred eighty".