3840669440 has 36 divisors (see below), whose sum is σ = 9199606584. Its totient is φ = 1536267264.

The previous prime is 3840669431. The next prime is 3840669479. The reversal of 3840669440 is 449660483.

It is a junction number, because it is equal to n+sod(n) for n = 3840669391 and 3840669400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1498982 + ... + 1501541.

Almost surely, 2^3840669440 is an apocalyptic number.

It is an amenable number.

3840669440 is an abundant number, since it is smaller than the sum of its proper divisors (5358937144).

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

3840669440 is an equidigital number, since it uses as much as digits as its factorization.

3840669440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000544 (or 3000530 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 44.

The square root of 3840669440 is about 61973.1348246964. The cubic root of 3840669440 is about 1566.0380501034.

The spelling of 3840669440 in words is "three billion, eight hundred forty million, six hundred sixty-nine thousand, four hundred forty".