1382436009 has 24 divisors (see below), whose sum is σ = 2010331752. Its totient is φ = 915425280.

The previous prime is 1382436007. The next prime is 1382436019. The reversal of 1382436009 is 9006342831.

1382436009 is a `hidden beast` number, since 1 + 3 + 8 + 2 + 43 + 600 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 337530384 + 1044905625 = 18372^2 + 32325^2 .

It is not a de Polignac number, because 1382436009 - 2¹ = 1382436007 is a prime.

It is a super-2 number, since 2×1382436009² = 3822258637959696162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1382436001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1337757 + ... + 1338789.

It is an arithmetic number, because the mean of its divisors is an integer number (83763823).

Almost surely, 2^1382436009 is an apocalyptic number.

It is an amenable number.

1382436009 is a deficient number, since it is larger than the sum of its proper divisors (627895743).

1382436009 is a wasteful number, since it uses less digits than its factorization.

1382436009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1382436009 is about 37181.1243643868. The cubic root of 1382436009 is about 1113.9909923773.

The spelling of 1382436009 in words is "one billion, three hundred eighty-two million, four hundred thirty-six thousand, nine".