19680046 has 4 divisors (see below), whose sum is σ = 29520072. Its totient is φ = 9840022.

The previous prime is 19680043. The next prime is 19680049. The reversal of 19680046 is 64008691.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (19680043) and next prime (19680049).

It is a junction number, because it is equal to n+sod(n) for n = 19679993 and 19680020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19680043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4920010 + ... + 4920013.

It is an arithmetic number, because the mean of its divisors is an integer number (7380018).

Almost surely, 2^19680046 is an apocalyptic number.

19680046 is a deficient number, since it is larger than the sum of its proper divisors (9840026).

19680046 is an equidigital number, since it uses as much as digits as its factorization.

19680046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9840025.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 19680046 is about 4436.2197871611. The cubic root of 19680046 is about 269.9864922369.

The spelling of 19680046 in words is "nineteen million, six hundred eighty thousand, forty-six".