19350985 has 4 divisors (see below), whose sum is σ = 23221188. Its totient is φ = 15480784.

The previous prime is 19350967. The next prime is 19351001. The reversal of 19350985 is 58905391.

19350985 is nontrivially palindromic in base 2.

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 14907321 + 4443664 = 3861^2 + 2108^2 .

It is a cyclic number.

It is not a de Polignac number, because 19350985 - 2⁷ = 19350857 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 1935094 + ... + 1935103.

It is an arithmetic number, because the mean of its divisors is an integer number (5805297).

Almost surely, 2^19350985 is an apocalyptic number.

It is an amenable number.

19350985 is a deficient number, since it is larger than the sum of its proper divisors (3870203).

19350985 is an equidigital number, since it uses as much as digits as its factorization.

19350985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3870202.

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 19350985 is about 4398.9754488972. The cubic root of 19350985 is about 268.4732532451.

The spelling of 19350985 in words is "nineteen million, three hundred fifty thousand, nine hundred eighty-five".