19229930 has 16 divisors (see below), whose sum is σ = 34671240. Its totient is φ = 7679232.

The previous prime is 19229911. The next prime is 19229939. The reversal of 19229930 is 3992291.

It can be written as a sum of positive squares in 4 ways, for example, as 17547721 + 1682209 = 4189^2 + 1297^2 .

It is a super-3 number, since 3×19229930³ (a number of 23 digits) contains 333 as substring.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (19229939) 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 7 ways as a sum of consecutive naturals, for example, 6902 + ... + 9278.

Almost surely, 2^19229930 is an apocalyptic number.

19229930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19229930 is a deficient number, since it is larger than the sum of its proper divisors (15441310).

19229930 is a wasteful number, since it uses less digits than its factorization.

19229930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 19229930 is about 4385.1944084613. The cubic root of 19229930 is about 267.9122475750.

The spelling of 19229930 in words is "nineteen million, two hundred twenty-nine thousand, nine hundred thirty".