1386939152 has 40 divisors (see below), whose sum is σ = 2943394200. Its totient is φ = 630167552.

The previous prime is 1386939131. The next prime is 1386939167. The reversal of 1386939152 is 2519396831.

It can be written as a sum of positive squares in 4 ways, for example, as 37405456 + 1349533696 = 6116^2 + 36736^2 .

It is a super-2 number, since 2×1386939152² = 3847200422700958208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1386939097 and 1386939106.

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, 80027 + ... + 95802.

It is an arithmetic number, because the mean of its divisors is an integer number (73584855).

Almost surely, 2^1386939152 is an apocalyptic number.

It is an amenable number.

1386939152 is an abundant number, since it is smaller than the sum of its proper divisors (1556455048).

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

1386939152 is a wasteful number, since it uses less digits than its factorization.

1386939152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175883 (or 175877 counting only the distinct ones).

The product of its digits is 349920, while the sum is 47.

The square root of 1386939152 is about 37241.6319728338. The cubic root of 1386939152 is about 1115.1992517287.

The spelling of 1386939152 in words is "one billion, three hundred eighty-six million, nine hundred thirty-nine thousand, one hundred fifty-two".