1388028096 has 504 divisors, whose sum is σ = 5192969040. Its totient is φ = 362299392.

The previous prime is 1388028091. The next prime is 1388028097. The reversal of 1388028096 is 6908208831.

It is a tau number, because it is divible by the number of its divisors (504).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388028091) 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 71 ways as a sum of consecutive naturals, for example, 14309520 + ... + 14309616.

It is an arithmetic number, because the mean of its divisors is an integer number (10303510).

Almost surely, 2^1388028096 is an apocalyptic number.

1388028096 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 1388028096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2596484520).

1388028096 is an abundant number, since it is smaller than the sum of its proper divisors (3804940944).

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

1388028096 is a wasteful number, since it uses less digits than its factorization.

1388028096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 1388028096 is about 37256.2490865626. The cubic root of 1388028096 is about 1115.4910385862.

The spelling of 1388028096 in words is "one billion, three hundred eighty-eight million, twenty-eight thousand, ninety-six".