3829658640 has 40 divisors (see below), whose sum is σ = 11871942528. Its totient is φ = 1021242240.

The previous prime is 3829658627. The next prime is 3829658641. The reversal of 3829658640 is 468569283.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (3829658641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7978216 + ... + 7978695.

Almost surely, 2^3829658640 is an apocalyptic number.

3829658640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3829658640 is an abundant number, since it is smaller than the sum of its proper divisors (8042283888).

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

3829658640 is a wasteful number, since it uses less digits than its factorization.

3829658640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15956927 (or 15956921 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 51.

The square root of 3829658640 is about 61884.2357955562. The cubic root of 3829658640 is about 1564.5400615707.

The spelling of 3829658640 in words is "three billion, eight hundred twenty-nine million, six hundred fifty-eight thousand, six hundred forty".