1385952650 has 48 divisors (see below), whose sum is σ = 2711397888. Its totient is φ = 526344000.

The previous prime is 1385952637. The next prime is 1385952661. The reversal of 1385952650 is 562595831.

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 23 ways as a sum of consecutive naturals, for example, 73715 + ... + 90585.

It is an arithmetic number, because the mean of its divisors is an integer number (56487456).

Almost surely, 2^1385952650 is an apocalyptic number.

1385952650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1385952650 is a deficient number, since it is larger than the sum of its proper divisors (1325445238).

1385952650 is a wasteful number, since it uses less digits than its factorization.

1385952650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16967 (or 16962 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 44.

The square root of 1385952650 is about 37228.3850039187. The cubic root of 1385952650 is about 1114.9347827285.

The spelling of 1385952650 in words is "one billion, three hundred eighty-five million, nine hundred fifty-two thousand, six hundred fifty".