19492085 has 4 divisors (see below), whose sum is σ = 23390508. Its totient is φ = 15593664.

The previous prime is 19492069. The next prime is 19492103. The reversal of 19492085 is 58029491.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10504081 + 8988004 = 3241^2 + 2998^2 .

It is a cyclic number.

It is not a de Polignac number, because 19492085 - 2⁴ = 19492069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1949204 + ... + 1949213.

It is an arithmetic number, because the mean of its divisors is an integer number (5847627).

Almost surely, 2^19492085 is an apocalyptic number.

It is an amenable number.

19492085 is a deficient number, since it is larger than the sum of its proper divisors (3898423).

19492085 is an equidigital number, since it uses as much as digits as its factorization.

19492085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3898422.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 19492085 is about 4414.9841449319. The cubic root of 19492085 is about 269.1242084728.

The spelling of 19492085 in words is "nineteen million, four hundred ninety-two thousand, eighty-five".