1385061892 has 12 divisors (see below), whose sum is σ = 2424243276. Its totient is φ = 692420960.

The previous prime is 1385061883. The next prime is 1385061929. The reversal of 1385061892 is 2981605831.

It can be written as a sum of positive squares in 2 ways, for example, as 336208896 + 1048852996 = 18336^2 + 32386^2 .

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, 5142 + ... + 52882.

It is an arithmetic number, because the mean of its divisors is an integer number (202020273).

Almost surely, 2^1385061892 is an apocalyptic number.

It is an amenable number.

1385061892 is a deficient number, since it is larger than the sum of its proper divisors (1039181384).

1385061892 is a wasteful number, since it uses less digits than its factorization.

1385061892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54998 (or 54996 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 1385061892 is about 37216.4196558455. The cubic root of 1385061892 is about 1114.6958736725.

The spelling of 1385061892 in words is "one billion, three hundred eighty-five million, sixty-one thousand, eight hundred ninety-two".