20019498 has 8 divisors (see below), whose sum is σ = 40039008. Its totient is φ = 6673164.

The previous prime is 20019463. The next prime is 20019511. The reversal of 20019498 is 89491002.

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

20019498 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1668286 + ... + 1668297.

It is an arithmetic number, because the mean of its divisors is an integer number (5004876).

Almost surely, 2^20019498 is an apocalyptic number.

20019498 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.

20019498 is a wasteful number, since it uses less digits than its factorization.

20019498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336588.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 20019498 is about 4474.3153666231. The cubic root of 20019498 is about 271.5299425343.

The spelling of 20019498 in words is "twenty million, nineteen thousand, four hundred ninety-eight".