3898020850 has 24 divisors (see below), whose sum is σ = 7373211120. Its totient is φ = 1532779920.

The previous prime is 3898020827. The next prime is 3898020851. The reversal of 3898020850 is 580208983.

It is a junction number, because it is equal to n+sod(n) for n = 3898020797 and 3898020806.

It is not an unprimeable number, because it can be changed into a prime (3898020851) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 657732 + ... + 663631.

It is an arithmetic number, because the mean of its divisors is an integer number (307217130).

Almost surely, 2^3898020850 is an apocalyptic number.

3898020850 is a deficient number, since it is larger than the sum of its proper divisors (3475190270).

3898020850 is a wasteful number, since it uses less digits than its factorization.

3898020850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321434 (or 1321429 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 3898020850 is about 62434.1320913489. The cubic root of 3898020850 is about 1573.7946063929.

The spelling of 3898020850 in words is "three billion, eight hundred ninety-eight million, twenty thousand, eight hundred fifty".