388891480 has 16 divisors (see below), whose sum is σ = 875005920. Its totient is φ = 155556576.

The previous prime is 388891453. The next prime is 388891499. The reversal of 388891480 is 84198883.

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 3 ways as a sum of consecutive naturals, for example, 4861104 + ... + 4861183.

It is an arithmetic number, because the mean of its divisors is an integer number (54687870).

Almost surely, 2^388891480 is an apocalyptic number.

It is an amenable number.

388891480 is an abundant number, since it is smaller than the sum of its proper divisors (486114440).

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

388891480 is a wasteful number, since it uses less digits than its factorization.

388891480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9722298 (or 9722294 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

The square root of 388891480 is about 19720.3316402134. The cubic root of 388891480 is about 729.9214777616.

The spelling of 388891480 in words is "three hundred eighty-eight million, eight hundred ninety-one thousand, four hundred eighty".