19228030 has 8 divisors (see below), whose sum is σ = 34610472. Its totient is φ = 7691208.

The previous prime is 19228021. The next prime is 19228031. The reversal of 19228030 is 3082291.

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 = 19227986 and 19228004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19228031) 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, 961392 + ... + 961411.

It is an arithmetic number, because the mean of its divisors is an integer number (4326309).

Almost surely, 2^19228030 is an apocalyptic number.

19228030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19228030 is a deficient number, since it is larger than the sum of its proper divisors (15382442).

19228030 is a wasteful number, since it uses less digits than its factorization.

19228030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922810.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 19228030 is about 4384.9777650520. The cubic root of 19228030 is about 267.9034236560.

The spelling of 19228030 in words is "nineteen million, two hundred twenty-eight thousand, thirty".