1388552088 has 128 divisors (see below), whose sum is σ = 4409925120. Its totient is φ = 353832960.

The previous prime is 1388552057. The next prime is 1388552119. The reversal of 1388552088 is 8802558831.

It is a happy number.

1388552088 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1388552057) and next prime (1388552119).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90856 + ... + 105032.

It is an arithmetic number, because the mean of its divisors is an integer number (34452540).

Almost surely, 2^1388552088 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 1388552088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2204962560).

1388552088 is an abundant number, since it is smaller than the sum of its proper divisors (3021373032).

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

1388552088 is a wasteful number, since it uses less digits than its factorization.

1388552088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14257 (or 14253 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 48.

The square root of 1388552088 is about 37263.2806929288. The cubic root of 1388552088 is about 1115.6313899343.

The spelling of 1388552088 in words is "one billion, three hundred eighty-eight million, five hundred fifty-two thousand, eighty-eight".