1389330288 has 30 divisors (see below), whose sum is σ = 3888195584. Its totient is φ = 463110048.

The previous prime is 1389330269. The next prime is 1389330307. The reversal of 1389330288 is 8820339831.

1389330288 is a `hidden beast` number, since 1 + 38 + 9 + 330 + 288 = 666.

It is an interprime number because it is at equal distance from previous prime (1389330269) and next prime (1389330307).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4823920 + ... + 4824207.

Almost surely, 2^1389330288 is an apocalyptic number.

1389330288 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1389330288 is an abundant number, since it is smaller than the sum of its proper divisors (2498865296).

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

1389330288 is a wasteful number, since it uses less digits than its factorization.

1389330288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9648141 (or 9648132 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1389330288 is about 37273.7211450641. The cubic root of 1389330288 is about 1115.8397657951.

The spelling of 1389330288 in words is "one billion, three hundred eighty-nine million, three hundred thirty thousand, two hundred eighty-eight".