19770230 has 8 divisors (see below), whose sum is σ = 35586432. Its totient is φ = 7908088.

The previous prime is 19770229. The next prime is 19770253. The reversal of 19770230 is 3207791.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 19770193 and 19770202.

It is a congruent 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, 988502 + ... + 988521.

It is an arithmetic number, because the mean of its divisors is an integer number (4448304).

Almost surely, 2^19770230 is an apocalyptic number.

19770230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19770230 is a deficient number, since it is larger than the sum of its proper divisors (15816202).

19770230 is a wasteful number, since it uses less digits than its factorization.

19770230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977030.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 19770230 is about 4446.3726789373. The cubic root of 19770230 is about 270.3982691176.

The spelling of 19770230 in words is "nineteen million, seven hundred seventy thousand, two hundred thirty".