19205485 has 16 divisors (see below), whose sum is σ = 26127360. Its totient is φ = 13435200.

The previous prime is 19205471. The next prime is 19205489. The reversal of 19205485 is 58450291.

It is not a de Polignac number, because 19205485 - 2⁹ = 19204973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19205485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19205489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6541 + ... + 9010.

It is an arithmetic number, because the mean of its divisors is an integer number (1632960).

Almost surely, 2^19205485 is an apocalyptic number.

It is an amenable number.

19205485 is a deficient number, since it is larger than the sum of its proper divisors (6921875).

19205485 is a wasteful number, since it uses less digits than its factorization.

19205485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15588.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 19205485 is about 4382.4063024781. The cubic root of 19205485 is about 267.7986764921.

The spelling of 19205485 in words is "nineteen million, two hundred five thousand, four hundred eighty-five".