1385268646 has 8 divisors (see below), whose sum is σ = 2107169424. Its totient is φ = 682878840.

The previous prime is 1385268637. The next prime is 1385268667. The reversal of 1385268646 is 6468625831.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1385268646.

It is a congruent number.

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, 4877565 + ... + 4877848.

It is an arithmetic number, because the mean of its divisors is an integer number (263396178).

Almost surely, 2^1385268646 is an apocalyptic number.

1385268646 is a deficient number, since it is larger than the sum of its proper divisors (721900778).

1385268646 is an equidigital number, since it uses as much as digits as its factorization.

1385268646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9755486.

The product of its digits is 1658880, while the sum is 49.

The square root of 1385268646 is about 37219.1972777490. The cubic root of 1385268646 is about 1114.7513360230.

The spelling of 1385268646 in words is "one billion, three hundred eighty-five million, two hundred sixty-eight thousand, six hundred forty-six".