1385766466 has 16 divisors (see below), whose sum is σ = 2390734656. Its totient is φ = 590116176.

The previous prime is 1385766457. The next prime is 1385766517. The reversal of 1385766466 is 6646675831.

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 7 ways as a sum of consecutive naturals, for example, 313036 + ... + 317431.

It is an arithmetic number, because the mean of its divisors is an integer number (149420916).

Almost surely, 2^1385766466 is an apocalyptic number.

1385766466 is a deficient number, since it is larger than the sum of its proper divisors (1004968190).

1385766466 is a wasteful number, since it uses less digits than its factorization.

1385766466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630633.

The product of its digits is 4354560, while the sum is 52.

The square root of 1385766466 is about 37225.8843548411. The cubic root of 1385766466 is about 1114.8848550215.

The spelling of 1385766466 in words is "one billion, three hundred eighty-five million, seven hundred sixty-six thousand, four hundred sixty-six".