19103998 has 8 divisors (see below), whose sum is σ = 29580480. Its totient is φ = 9243840.

The previous prime is 19103989. The next prime is 19103999. The reversal of 19103998 is 89930191.

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

It is a self number, because there is not a number n which added to its sum of digits gives 19103998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19103999) 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, 154003 + ... + 154126.

It is an arithmetic number, because the mean of its divisors is an integer number (3697560).

Almost surely, 2^19103998 is an apocalyptic number.

19103998 is a deficient number, since it is larger than the sum of its proper divisors (10476482).

19103998 is a wasteful number, since it uses less digits than its factorization.

19103998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308162.

The product of its (nonzero) digits is 17496, while the sum is 40.

The square root of 19103998 is about 4370.8120526968. The cubic root of 19103998 is about 267.3261361832.

The spelling of 19103998 in words is "nineteen million, one hundred three thousand, nine hundred ninety-eight".