19776230 has 8 divisors (see below), whose sum is σ = 35597232. Its totient is φ = 7910488.

The previous prime is 19776223. The next prime is 19776247. The reversal of 19776230 is 3267791.

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

It is a congruent number.

It is an unprimeable number.

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, 988802 + ... + 988821.

It is an arithmetic number, because the mean of its divisors is an integer number (4449654).

Almost surely, 2^19776230 is an apocalyptic number.

19776230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19776230 is a deficient number, since it is larger than the sum of its proper divisors (15821002).

19776230 is a wasteful number, since it uses less digits than its factorization.

19776230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977630.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 19776230 is about 4447.0473350303. The cubic root of 19776230 is about 270.4256204351.

The spelling of 19776230 in words is "nineteen million, seven hundred seventy-six thousand, two hundred thirty".