1387873832 has 32 divisors (see below), whose sum is σ = 2638607400. Its totient is φ = 684288000.

The previous prime is 1387873831. The next prime is 1387873841. The reversal of 1387873832 is 2383787831.

It can be written as a sum of positive squares in 4 ways, for example, as 1386370756 + 1503076 = 37234^2 + 1226^2 .

It is not an unprimeable number, because it can be changed into a prime (1387873831) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 283082 + ... + 287942.

Almost surely, 2^1387873832 is an apocalyptic number.

It is an amenable number.

1387873832 is a deficient number, since it is larger than the sum of its proper divisors (1250733568).

1387873832 is a wasteful number, since it uses less digits than its factorization.

1387873832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5357 (or 5353 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 50.

The square root of 1387873832 is about 37254.1787186350. The cubic root of 1387873832 is about 1115.4497122169.

The spelling of 1387873832 in words is "one billion, three hundred eighty-seven million, eight hundred seventy-three thousand, eight hundred thirty-two".