1382356845 has 12 divisors (see below), whose sum is σ = 2396085276. Its totient is φ = 737256960.

The previous prime is 1382356841. The next prime is 1382356847. The reversal of 1382356845 is 5486532831.

1382356845 is a `hidden beast` number, since 1 + 3 + 82 + 3 + 568 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 593701956 + 788654889 = 24366^2 + 28083^2 .

It is not a de Polignac number, because 1382356845 - 2² = 1382356841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 30719041 = 1382356845 / (1 + 3 + 8 + 2 + 3 + 5 + 6 + 8 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1382356845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1382356841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15359476 + ... + 15359565.

It is an arithmetic number, because the mean of its divisors is an integer number (199673773).

Almost surely, 2^1382356845 is an apocalyptic number.

1382356845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1382356845 is a deficient number, since it is larger than the sum of its proper divisors (1013728431).

1382356845 is a wasteful number, since it uses less digits than its factorization.

1382356845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30719052 (or 30719049 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 1382356845 is about 37180.0597767136. The cubic root of 1382356845 is about 1113.9697280618.

The spelling of 1382356845 in words is "one billion, three hundred eighty-two million, three hundred fifty-six thousand, eight hundred forty-five".