19361930 has 16 divisors (see below), whose sum is σ = 39830400. Its totient is φ = 6638352.

The previous prime is 19361921. The next prime is 19361933. The reversal of 19361930 is 3916391.

It is not an unprimeable number, because it can be changed into a prime (19361933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138230 + ... + 138369.

It is an arithmetic number, because the mean of its divisors is an integer number (2489400).

Almost surely, 2^19361930 is an apocalyptic number.

19361930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19361930 is an abundant number, since it is smaller than the sum of its proper divisors (20468470).

19361930 is a wasteful number, since it uses less digits than its factorization.

19361930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276613.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 19361930 is about 4400.2193127161. The cubic root of 19361930 is about 268.5238602458.

The spelling of 19361930 in words is "nineteen million, three hundred sixty-one thousand, nine hundred thirty".