1388041088 has 128 divisors (see below), whose sum is σ = 3279096000. Its totient is φ = 572866560.

The previous prime is 1388041087. The next prime is 1388041091. The reversal of 1388041088 is 8801408831.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388041087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4939508 + ... + 4939788.

Almost surely, 2^1388041088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1388041088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1639548000).

1388041088 is an abundant number, since it is smaller than the sum of its proper divisors (1891054912).

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

1388041088 is a wasteful number, since it uses less digits than its factorization.

1388041088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 41.

The square root of 1388041088 is about 37256.4234461656. The cubic root of 1388041088 is about 1115.4945189226.

The spelling of 1388041088 in words is "one billion, three hundred eighty-eight million, forty-one thousand, eighty-eight".