198690416 has 10 divisors (see below), whose sum is σ = 384962712. Its totient is φ = 99345200.

The previous prime is 198690413. The next prime is 198690419. The reversal of 198690416 is 614096891.

It is an interprime number because it is at equal distance from previous prime (198690413) and next prime (198690419).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198690413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6209060 + ... + 6209091.

Almost surely, 2^198690416 is an apocalyptic number.

198690416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

198690416 is the 7535-th centered heptagonal number.

It is an amenable number.

198690416 is a deficient number, since it is larger than the sum of its proper divisors (186272296).

198690416 is a wasteful number, since it uses less digits than its factorization.

198690416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12418159 (or 12418153 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 198690416 is about 14095.7587947581. The cubic root of 198690416 is about 583.5243358926.

The spelling of 198690416 in words is "one hundred ninety-eight million, six hundred ninety thousand, four hundred sixteen".