19768930 has 16 divisors (see below), whose sum is σ = 37457280. Its totient is φ = 7491312.

The previous prime is 19768927. The next prime is 19768933. The reversal of 19768930 is 3986791.

It is an interprime number because it is at equal distance from previous prime (19768927) and next prime (19768933).

It is not an unprimeable number, because it can be changed into a prime (19768933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51834 + ... + 52213.

It is an arithmetic number, because the mean of its divisors is an integer number (2341080).

Almost surely, 2^19768930 is an apocalyptic number.

19768930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19768930 is a deficient number, since it is larger than the sum of its proper divisors (17688350).

19768930 is a wasteful number, since it uses less digits than its factorization.

19768930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104073.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 19768930 is about 4446.2264899575. The cubic root of 19768930 is about 270.3923422694.

The spelling of 19768930 in words is "nineteen million, seven hundred sixty-eight thousand, nine hundred thirty".