1387015746 has 8 divisors (see below), whose sum is σ = 2774031504. Its totient is φ = 462338580.

The previous prime is 1387015727. The next prime is 1387015757. The reversal of 1387015746 is 6475107831.

It is a sphenic number, since it is the product of 3 distinct primes.

1387015746 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1387015698 and 1387015707.

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 3 ways as a sum of consecutive naturals, for example, 115584640 + ... + 115584651.

It is an arithmetic number, because the mean of its divisors is an integer number (346753938).

Almost surely, 2^1387015746 is an apocalyptic number.

1387015746 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1387015746 is a wasteful number, since it uses less digits than its factorization.

1387015746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231169296.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 1387015746 is about 37242.6602970303. The cubic root of 1387015746 is about 1115.2197803869.

The spelling of 1387015746 in words is "one billion, three hundred eighty-seven million, fifteen thousand, seven hundred forty-six".