190538785 has 16 divisors (see below), whose sum is σ = 239230080. Its totient is φ = 145411200.

The previous prime is 190538753. The next prime is 190538791. The reversal of 190538785 is 587835091.

It is not a de Polignac number, because 190538785 - 2⁵ = 190538753 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 45010 + ... + 49060.

It is an arithmetic number, because the mean of its divisors is an integer number (14951880).

Almost surely, 2^190538785 is an apocalyptic number.

It is an amenable number.

190538785 is a deficient number, since it is larger than the sum of its proper divisors (48691295).

190538785 is a wasteful number, since it uses less digits than its factorization.

190538785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488.

The product of its (nonzero) digits is 302400, while the sum is 46.

The square root of 190538785 is about 13803.5787026408. The cubic root of 190538785 is about 575.4326019860.

The spelling of 190538785 in words is "one hundred ninety million, five hundred thirty-eight thousand, seven hundred eighty-five".