19490485 has 48 divisors (see below), whose sum is σ = 29548800. Its totient is φ = 12265344.

The previous prime is 19490467. The next prime is 19490503. The reversal of 19490485 is 58409491.

It is an interprime number because it is at equal distance from previous prime (19490467) and next prime (19490503).

It is not a de Polignac number, because 19490485 - 2⁷ = 19490357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 246676 + ... + 246754.

It is an arithmetic number, because the mean of its divisors is an integer number (615600).

Almost surely, 2^19490485 is an apocalyptic number.

It is an amenable number.

19490485 is a deficient number, since it is larger than the sum of its proper divisors (10058315).

19490485 is a wasteful number, since it uses less digits than its factorization.

19490485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 19490485 is about 4414.8029401096. The cubic root of 19490485 is about 269.1168446203.

The spelling of 19490485 in words is "nineteen million, four hundred ninety thousand, four hundred eighty-five".