19898098 has 8 divisors (see below), whose sum is σ = 32560560. Its totient is φ = 9044580.

The previous prime is 19898093. The next prime is 19898101. The reversal of 19898098 is 89089891.

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

It is not an unprimeable number, because it can be changed into a prime (19898093) 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, 452208 + ... + 452251.

It is an arithmetic number, because the mean of its divisors is an integer number (4070070).

Almost surely, 2^19898098 is an apocalyptic number.

19898098 is a deficient number, since it is larger than the sum of its proper divisors (12662462).

19898098 is a wasteful number, since it uses less digits than its factorization.

19898098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904472.

The product of its (nonzero) digits is 373248, while the sum is 52.

The square root of 19898098 is about 4460.7284158532. The cubic root of 19898098 is about 270.9799688357.

The spelling of 19898098 in words is "nineteen million, eight hundred ninety-eight thousand, ninety-eight".