19342198 has 4 divisors (see below), whose sum is σ = 29013300. Its totient is φ = 9671098.

The previous prime is 19342189. The next prime is 19342199. The reversal of 19342198 is 89124391.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89124391 = 137 ⋅650543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19342199) 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, 4835548 + ... + 4835551.

It is an arithmetic number, because the mean of its divisors is an integer number (7253325).

Almost surely, 2^19342198 is an apocalyptic number.

19342198 is a deficient number, since it is larger than the sum of its proper divisors (9671102).

19342198 is an equidigital number, since it uses as much as digits as its factorization.

19342198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9671101.

The product of its digits is 15552, while the sum is 37.

The square root of 19342198 is about 4397.9765802014. The cubic root of 19342198 is about 268.4326104967.

The spelling of 19342198 in words is "nineteen million, three hundred forty-two thousand, one hundred ninety-eight".