1388614328 has 64 divisors (see below), whose sum is σ = 2762968320. Its totient is φ = 652960000.

The previous prime is 1388614303. The next prime is 1388614361. The reversal of 1388614328 is 8234168831.

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 15 ways as a sum of consecutive naturals, for example, 4941548 + ... + 4941828.

It is an arithmetic number, because the mean of its divisors is an integer number (43171380).

Almost surely, 2^1388614328 is an apocalyptic number.

It is an amenable number.

1388614328 is a deficient number, since it is larger than the sum of its proper divisors (1374353992).

1388614328 is a wasteful number, since it uses less digits than its factorization.

1388614328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 664 counting only the distinct ones).

The product of its digits is 221184, while the sum is 44.

The square root of 1388614328 is about 37264.1158220613. The cubic root of 1388614328 is about 1115.6480585828.

The spelling of 1388614328 in words is "one billion, three hundred eighty-eight million, six hundred fourteen thousand, three hundred twenty-eight".