1388324488 has 16 divisors (see below), whose sum is σ = 2663646480. Its totient is φ = 678018768.

The previous prime is 1388324473. The next prime is 1388324513. The reversal of 1388324488 is 8844238831.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2017570 + ... + 2018257.

It is an arithmetic number, because the mean of its divisors is an integer number (166477905).

Almost surely, 2^1388324488 is an apocalyptic number.

It is an amenable number.

1388324488 is a deficient number, since it is larger than the sum of its proper divisors (1275321992).

1388324488 is a wasteful number, since it uses less digits than its factorization.

1388324488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035876 (or 4035872 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 49.

The square root of 1388324488 is about 37260.2266230360. The cubic root of 1388324488 is about 1115.5704315731.

The spelling of 1388324488 in words is "one billion, three hundred eighty-eight million, three hundred twenty-four thousand, four hundred eighty-eight".