1388980873 has 8 divisors (see below), whose sum is σ = 1589477120. Its totient is φ = 1189002240.

The previous prime is 1388980867. The next prime is 1388980877. The reversal of 1388980873 is 3780898831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1388980873 - 2⁹ = 1388980361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1388980877) by changing a digit.

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, 123633 + ... + 134398.

It is an arithmetic number, because the mean of its divisors is an integer number (198684640).

Almost surely, 2^1388980873 is an apocalyptic number.

It is an amenable number.

1388980873 is a deficient number, since it is larger than the sum of its proper divisors (200496247).

1388980873 is an equidigital number, since it uses as much as digits as its factorization.

1388980873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258807.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The square root of 1388980873 is about 37269.0337009158. The cubic root of 1388980873 is about 1115.7462138045.

The spelling of 1388980873 in words is "one billion, three hundred eighty-eight million, nine hundred eighty thousand, eight hundred seventy-three".