1388172096 has 168 divisors, whose sum is σ = 4173833664. Its totient is φ = 440616960.

The previous prime is 1388172089. The next prime is 1388172109. The reversal of 1388172096 is 6902718831.

It is a super-2 number, since 2×1388172096² = 3854043536226066432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1014805 + ... + 1016171.

It is an arithmetic number, because the mean of its divisors is an integer number (24844248).

Almost surely, 2^1388172096 is an apocalyptic number.

1388172096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1388172096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2086916832).

1388172096 is an abundant number, since it is smaller than the sum of its proper divisors (2785661568).

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

1388172096 is a wasteful number, since it uses less digits than its factorization.

1388172096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469 (or 1456 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 1388172096 is about 37258.1815981403. The cubic root of 1388172096 is about 1115.5296125304.

The spelling of 1388172096 in words is "one billion, three hundred eighty-eight million, one hundred seventy-two thousand, ninety-six".