19485413 has 4 divisors (see below), whose sum is σ = 19804908. Its totient is φ = 19165920.

The previous prime is 19485377. The next prime is 19485463. The reversal of 19485413 is 31458491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31458491 = 739 ⋅42569.

It can be written as a sum of positive squares in 2 ways, for example, as 5098564 + 14386849 = 2258^2 + 3793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19485413 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19485463) 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, 159656 + ... + 159777.

It is an arithmetic number, because the mean of its divisors is an integer number (4951227).

Almost surely, 2^19485413 is an apocalyptic number.

It is an amenable number.

19485413 is a deficient number, since it is larger than the sum of its proper divisors (319495).

19485413 is an equidigital number, since it uses as much as digits as its factorization.

19485413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319494.

The product of its digits is 17280, while the sum is 35.

The square root of 19485413 is about 4414.2284716584. The cubic root of 19485413 is about 269.0934985439.

The spelling of 19485413 in words is "nineteen million, four hundred eighty-five thousand, four hundred thirteen".