1388874079 has 8 divisors (see below), whose sum is σ = 1402814160. Its totient is φ = 1374989376.

The previous prime is 1388874077. The next prime is 1388874131. The reversal of 1388874079 is 9704788831.

It is a happy number.

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 1388874079 - 2¹ = 1388874077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388874077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37512 + ... + 64690.

It is an arithmetic number, because the mean of its divisors is an integer number (175351770).

Almost surely, 2^1388874079 is an apocalyptic number.

1388874079 is a deficient number, since it is larger than the sum of its proper divisors (13940081).

1388874079 is a wasteful number, since it uses less digits than its factorization.

1388874079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27689.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The square root of 1388874079 is about 37267.6009289570. The cubic root of 1388874079 is about 1115.7176177651.

The spelling of 1388874079 in words is "one billion, three hundred eighty-eight million, eight hundred seventy-four thousand, seventy-nine".