1387916582 has 16 divisors (see below), whose sum is σ = 2242643760. Its totient is φ = 640398432.

The previous prime is 1387916561. The next prime is 1387916599. The reversal of 1387916582 is 2856197831.

It is a self number, because there is not a number n which added to its sum of digits gives 1387916582.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152969 + ... + 161787.

It is an arithmetic number, because the mean of its divisors is an integer number (140165235).

Almost surely, 2^1387916582 is an apocalyptic number.

1387916582 is a deficient number, since it is larger than the sum of its proper divisors (854727178).

1387916582 is a wasteful number, since it uses less digits than its factorization.

1387916582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14887.

The product of its digits is 725760, while the sum is 50.

The square root of 1387916582 is about 37254.7524753554. The cubic root of 1387916582 is about 1115.4611649836.

The spelling of 1387916582 in words is "one billion, three hundred eighty-seven million, nine hundred sixteen thousand, five hundred eighty-two".