19228130 has 8 divisors (see below), whose sum is σ = 34610652. Its totient is φ = 7691248.

The previous prime is 19228117. The next prime is 19228141. The reversal of 19228130 is 3182291.

It can be written as a sum of positive squares in 2 ways, for example, as 19193161 + 34969 = 4381^2 + 187^2 .

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

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 19228130.

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, 961397 + ... + 961416.

Almost surely, 2^19228130 is an apocalyptic number.

19228130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19228130 is a deficient number, since it is larger than the sum of its proper divisors (15382522).

19228130 is a wasteful number, since it uses less digits than its factorization.

19228130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922820.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 19228130 is about 4384.9891676035. The cubic root of 19228130 is about 267.9038880873.

The spelling of 19228130 in words is "nineteen million, two hundred twenty-eight thousand, one hundred thirty".