3899190642 has 8 divisors (see below), whose sum is σ = 7798381296. Its totient is φ = 1299730212.

The previous prime is 3899190637. The next prime is 3899190671. The reversal of 3899190642 is 2460919983.

It is a sphenic number, since it is the product of 3 distinct primes.

3899190642 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 324932548 + ... + 324932559.

It is an arithmetic number, because the mean of its divisors is an integer number (974797662).

Almost surely, 2^3899190642 is an apocalyptic number.

3899190642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3899190642 is a wasteful number, since it uses less digits than its factorization.

3899190642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649865112.

The product of its (nonzero) digits is 839808, while the sum is 51.

The square root of 3899190642 is about 62443.4995976363. The cubic root of 3899190642 is about 1573.9520220217.

The spelling of 3899190642 in words is "three billion, eight hundred ninety-nine million, one hundred ninety thousand, six hundred forty-two".