3842197816 has 8 divisors (see below), whose sum is σ = 7204120920. Its totient is φ = 1921098904.

The previous prime is 3842197813. The next prime is 3842197861. The reversal of 3842197816 is 6187912483.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 3842197816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3842197813) 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 as a sum of consecutive naturals, namely, 240137356 + ... + 240137371.

It is an arithmetic number, because the mean of its divisors is an integer number (900515115).

Almost surely, 2^3842197816 is an apocalyptic number.

It is an amenable number.

3842197816 is a deficient number, since it is larger than the sum of its proper divisors (3361923104).

3842197816 is a wasteful number, since it uses less digits than its factorization.

3842197816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480274733 (or 480274729 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 3842197816 is about 61985.4645542001. The cubic root of 3842197816 is about 1566.2457550001.

The spelling of 3842197816 in words is "three billion, eight hundred forty-two million, one hundred ninety-seven thousand, eight hundred sixteen".