19480943 has 4 divisors (see below), whose sum is σ = 19699920. Its totient is φ = 19261968.

The previous prime is 19480939. The next prime is 19480969. The reversal of 19480943 is 34908491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34908491 = 19 ⋅1837289.

It is a cyclic number.

It is not a de Polignac number, because 19480943 - 2² = 19480939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19480897 and 19480906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19480973) 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, 109355 + ... + 109532.

It is an arithmetic number, because the mean of its divisors is an integer number (4924980).

Almost surely, 2^19480943 is an apocalyptic number.

19480943 is a deficient number, since it is larger than the sum of its proper divisors (218977).

19480943 is an equidigital number, since it uses as much as digits as its factorization.

19480943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218976.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 19480943 is about 4413.7221253722. The cubic root of 19480943 is about 269.0729200744.

The spelling of 19480943 in words is "nineteen million, four hundred eighty thousand, nine hundred forty-three".