3825409640 has 48 divisors (see below), whose sum is σ = 9320208300. Its totient is φ = 1412456448.

The previous prime is 3825409619. The next prime is 3825409681. The reversal of 3825409640 is 469045283.

It can be written as a sum of positive squares in 6 ways, for example, as 363970084 + 3461439556 = 19078^2 + 58834^2 .

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 11 ways as a sum of consecutive naturals, for example, 276185 + ... + 289704.

Almost surely, 2^3825409640 is an apocalyptic number.

It is an amenable number.

3825409640 is an abundant number, since it is smaller than the sum of its proper divisors (5494798660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3825409640 is a wasteful number, since it uses less digits than its factorization.

3825409640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565926 (or 565909 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 3825409640 is about 61849.8960387162. The cubic root of 3825409640 is about 1563.9612292332.

The spelling of 3825409640 in words is "three billion, eight hundred twenty-five million, four hundred nine thousand, six hundred forty".