1387713600 has 672 divisors, whose sum is σ = 6243767040. Its totient is φ = 291962880.

The previous prime is 1387713599. The next prime is 1387713619. The reversal of 1387713600 is 63177831.

1387713600 is a `hidden beast` number, since 1 + 38 + 7 + 7 + 13 + 600 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 3931024 + ... + 3931376.

It is an arithmetic number, because the mean of its divisors is an integer number (9291320).

Almost surely, 2^1387713600 is an apocalyptic number.

1387713600 is a gapful number since it is divisible by the number (10) 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 1387713600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3121883520).

1387713600 is an abundant number, since it is smaller than the sum of its proper divisors (4856053440).

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

1387713600 is a wasteful number, since it uses less digits than its factorization.

1387713600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 1387713600 is about 37252.0281327071. The cubic root of 1387713600 is about 1115.4067838150.

The spelling of 1387713600 in words is "one billion, three hundred eighty-seven million, seven hundred thirteen thousand, six hundred".