19794198 has 8 divisors (see below), whose sum is σ = 39588408. Its totient is φ = 6598064.

The previous prime is 19794197. The next prime is 19794199. The reversal of 19794198 is 89149791.

It is an interprime number because it is at equal distance from previous prime (19794197) and next prime (19794199).

It is a sphenic number, since it is the product of 3 distinct primes.

19794198 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19794193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1649511 + ... + 1649522.

It is an arithmetic number, because the mean of its divisors is an integer number (4948551).

Almost surely, 2^19794198 is an apocalyptic number.

19794198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19794198 is a wasteful number, since it uses less digits than its factorization.

19794198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3299038.

The product of its digits is 163296, while the sum is 48.

The square root of 19794198 is about 4449.0670932230. The cubic root of 19794198 is about 270.5074954389.

It can be divided in two parts, 197 and 94198, that added together give a triangular number (94395 = T₄₃₄).

The spelling of 19794198 in words is "nineteen million, seven hundred ninety-four thousand, one hundred ninety-eight".