1387008276 has 24 divisors (see below), whose sum is σ = 3259979520. Its totient is φ = 458960832.

The previous prime is 1387008263. The next prime is 1387008331. The reversal of 1387008276 is 6728007831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420196 + ... + 423483.

It is an arithmetic number, because the mean of its divisors is an integer number (135832480).

Almost surely, 2^1387008276 is an apocalyptic number.

It is an amenable number.

1387008276 is an abundant number, since it is smaller than the sum of its proper divisors (1872971244).

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

1387008276 is a wasteful number, since it uses less digits than its factorization.

1387008276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843823 (or 843821 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 1387008276 is about 37242.5600086782. The cubic root of 1387008276 is about 1115.2177783172.

The spelling of 1387008276 in words is "one billion, three hundred eighty-seven million, eight thousand, two hundred seventy-six".