19680029 has 4 divisors (see below), whose sum is σ = 20715840. Its totient is φ = 18644220.

The previous prime is 19680007. The next prime is 19680043. The reversal of 19680029 is 92008691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92008691 = 43 ⋅2139737.

It is a cyclic number.

It is not a de Polignac number, because 19680029 - 2⁸ = 19679773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19680049) 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, 517877 + ... + 517914.

It is an arithmetic number, because the mean of its divisors is an integer number (5178960).

Almost surely, 2^19680029 is an apocalyptic number.

19680029 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

19680029 is a deficient number, since it is larger than the sum of its proper divisors (1035811).

19680029 is a wasteful number, since it uses less digits than its factorization.

19680029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035810.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 19680029 is about 4436.2178711150. The cubic root of 19680029 is about 269.9864144970.

The spelling of 19680029 in words is "nineteen million, six hundred eighty thousand, twenty-nine".