19908230 has 8 divisors (see below), whose sum is σ = 35834832. Its totient is φ = 7963288.

The previous prime is 19908223. The next prime is 19908233. The reversal of 19908230 is 3280991.

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

It is a super-3 number, since 3×19908230³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19908233) 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 in 3 ways as a sum of consecutive naturals, for example, 995402 + ... + 995421.

It is an arithmetic number, because the mean of its divisors is an integer number (4479354).

Almost surely, 2^19908230 is an apocalyptic number.

19908230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19908230 is a deficient number, since it is larger than the sum of its proper divisors (15926602).

19908230 is a wasteful number, since it uses less digits than its factorization.

19908230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990830.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 19908230 is about 4461.8639602749. The cubic root of 19908230 is about 271.0259548586.

The spelling of 19908230 in words is "nineteen million, nine hundred eight thousand, two hundred thirty".