1387675008 has 192 divisors, whose sum is σ = 4223681280. Its totient is φ = 436423680.

The previous prime is 1387674983. The next prime is 1387675021. The reversal of 1387675008 is 8005767831.

1387675008 is a `hidden beast` number, since 1 + 3 + 87 + 67 + 500 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

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, 2198853 + ... + 2199483.

It is an arithmetic number, because the mean of its divisors is an integer number (21998340).

Almost surely, 2^1387675008 is an apocalyptic number.

1387675008 is a gapful number since it is divisible by the number (18) 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 1387675008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2111840640).

1387675008 is an abundant number, since it is smaller than the sum of its proper divisors (2836006272).

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

1387675008 is a wasteful number, since it uses less digits than its factorization.

1387675008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757 (or 742 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 1387675008 is about 37251.5101438854. The cubic root of 1387675008 is about 1115.3964439827.

The spelling of 1387675008 in words is "one billion, three hundred eighty-seven million, six hundred seventy-five thousand, eight".