3191198208 has 160 divisors (see below), whose sum is σ = 9416183040. Its totient is φ = 952258560.

The previous prime is 3191198207. The next prime is 3191198209. The reversal of 3191198208 is 8028911913.

It is an interprime number because it is at equal distance from previous prime (3191198207) and next prime (3191198209).

It is a super-2 number, since 2×3191198208² = 20367492005484822528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3191198208.

It is not an unprimeable number, because it can be changed into a prime (3191198207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1130623 + ... + 1133441.

It is an arithmetic number, because the mean of its divisors is an integer number (58851144).

Almost surely, 2^3191198208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3191198208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4708091520).

3191198208 is an abundant number, since it is smaller than the sum of its proper divisors (6224984832).

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

3191198208 is a wasteful number, since it uses less digits than its factorization.

3191198208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918 (or 2902 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 3191198208 is about 56490.6913393702. The cubic root of 3191198208 is about 1472.2602721876.

The spelling of 3191198208 in words is "three billion, one hundred ninety-one million, one hundred ninety-eight thousand, two hundred eight".