1391316198 has 32 divisors (see below), whose sum is σ = 2835689472. Its totient is φ = 454996800.

The previous prime is 1391316187. The next prime is 1391316203. The reversal of 1391316198 is 8916131931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75343 + ... + 91973.

It is an arithmetic number, because the mean of its divisors is an integer number (88615296).

Almost surely, 2^1391316198 is an apocalyptic number.

1391316198 is an abundant number, since it is smaller than the sum of its proper divisors (1444373274).

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

1391316198 is a wasteful number, since it uses less digits than its factorization.

1391316198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16900.

The product of its digits is 34992, while the sum is 42.

The square root of 1391316198 is about 37300.3511779715. The cubic root of 1391316198 is about 1116.3711734753.

The spelling of 1391316198 in words is "one billion, three hundred ninety-one million, three hundred sixteen thousand, one hundred ninety-eight".